In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 10, 2026 - 20:00 UTC
Scheduled - Dear Virtuozzo Customer,

We are informing you of a scheduled maintenance window on March 10, 2026, starting at 20:00 UTC and lasting for approximately 5 hours. During this time, we will be performing planned work to optimize hardware configuration on two cluster nodes.

Reason for Maintenance
Replacing a hardware on two cluster nodes.

Expected Impact
Each of the two cluster nodes will be temporarily shut down in sequence to replace hardware components.

Before shutting down a node, all virtual machines will be live-migrated to other available nodes. This may cause minor delays in virtual machine operations.
These activities will not affect overall cloud availability or the operation of other virtual machines.

We apologize for any inconvenience this maintenance may cause. Should you have any concerns or require further clarification, please contact your technical account manager or submit a support ticket.

Thank you for your understanding and cooperation.

Sincerely,
Virtuozzo Cloud Operations Team

Mar 10, 2026 20:00 - Mar 11, 2026 01:00 UTC

About This Site

This is the status page for Virtuozzo Hybrid Cloud services in each region.

Cloud Management Platform / Partner Center Operational
PaaS API and Management Self-Service Operational
EU1 - Frankfurt Under Maintenance
IaaS Under Maintenance
PaaS Under Maintenance
EU3 - Amsterdam Operational
IaaS Operational
PaaS Operational
EU4 - Amsterdam Operational
IaaS Operational
PaaS Operational
EU5 - Dublin Operational
IaaS Operational
PaaS Operational
UK1 - Manchester Operational
IaaS Operational
PaaS Operational
US1 - Dallas Operational
IaaS Operational
PaaS Operational
CND1 - Canada Operational
IaaS Operational
PaaS Operational
EU3-S3 Amsterdam Operational
90 days ago
100.0 % uptime
Today
ISR1 - Israel Operational
90 days ago
100.0 % uptime
Today
IaaS Operational
90 days ago
100.0 % uptime
Today
PaaS Operational
90 days ago
100.0 % uptime
Today
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.

Scheduled Maintenance

Software update in location EU3, March 11, 2026 Mar 11, 2026 08:00-16:00 UTC

Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 11, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.1 to 6.2
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Posted on Mar 03, 2026 - 08:34 UTC

US1 - Scheduled Network Maintenance - March 12, 2026 Mar 12, 2026 07:00-15:00 UTC

Dear Virtuozzo Customer,

We would like to inform you that our provider will be conducting maintenance to address a critical issue on a network switch. This work is essential to ensure continued reliability and optimal performance of our network infrastructure.

Maintenance Window:
Start: March 12, 2026 07:00 (UTC)
End: March 12, 2026 15:00 (UTC)

This maintenance will impact one server in the US1 IaaS cluster.
Prior to the maintenance window, all workloads running on the affected server will be live-migrated to avoid service disruption.

Thank you for your understanding and cooperation.
If you have any questions, please contact our support team.

Sincerely,
Virtuozzo Cloud Operations Team

Posted on Mar 02, 2026 - 12:07 UTC

Software update in location EU3, March 12, 2026 Mar 12, 2026 08:00-16:00 UTC

Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 12, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.1 to 6.2
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Posted on Mar 03, 2026 - 08:36 UTC

Software update in location EU3, March 16, 2026 Mar 16, 2026 08:00-16:00 UTC

Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 16, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.1 to 6.2
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Posted on Mar 09, 2026 - 11:40 UTC

Software update in location EU3, March 17, 2026 Mar 17, 2026 08:00-16:00 UTC

Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 17, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.1 to 6.2
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Posted on Mar 09, 2026 - 11:41 UTC

Software update in location EU3, March 18, 2026 Mar 18, 2026 08:00-16:00 UTC

Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 18, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.1 to 6.2
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Posted on Mar 09, 2026 - 11:42 UTC

Software update in location EU3, March 19, 2026 Mar 19, 2026 08:00-16:00 UTC

Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 19, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.1 to 6.2
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Posted on Mar 09, 2026 - 11:43 UTC

EU3 - Scheduled Network Maintenance - March 20, 2026 Mar 20, 2026 07:00-15:00 UTC

Dear Virtuozzo Customer,

We would like to inform you that our provider will be conducting maintenance to address a critical issue on a network switch. This work is essential to ensure continued reliability and optimal performance of our network infrastructure.

Maintenance Window:
Start: March 20, 2026 07:00 (UTC)
End: March 20, 2026 15:00 (UTC)

This maintenance will impact one server in the EU3 IaaS cluster.
Prior to the maintenance window, all workloads running on the affected server will be live-migrated to avoid service disruption.

Thank you for your understanding and cooperation.
If you have any questions, please contact our support team.

Sincerely,
Virtuozzo Cloud Operations Team

Posted on Mar 09, 2026 - 07:25 UTC

Software update in location EU3, March 20, 2026 Mar 20, 2026 08:00-16:00 UTC

Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 20, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.1 to 6.2
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Posted on Mar 09, 2026 - 11:47 UTC
Mar 10, 2026
Completed - The scheduled maintenance has been completed.
Mar 10, 15:16 UTC
Verifying - Verification is currently underway for the maintenance items.
Mar 10, 14:36 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 10, 08:00 UTC
Scheduled - Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 10, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.1 to 6.2
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Mar 3, 08:33 UTC
Completed - The scheduled maintenance has been completed.
Mar 10, 06:54 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 10, 00:00 UTC
Scheduled - Dear Virtuozzo Customer,

We would like to inform you that our provider will be conducting maintenance to address a critical issue on a network switch. This work is essential to ensure continued reliability and optimal performance of our network infrastructure.

Maintenance Window:
Start: March 10, 2026 00:00 (UTC)
End: March 10, 2026 08:00 (UTC)

This maintenance will impact one server in the EU3 IaaS cluster.
Prior to the maintenance window, all workloads running on the affected server will be live-migrated to avoid service disruption.

Thank you for your understanding and cooperation.
If you have any questions, please contact our support team.

Sincerely,
Virtuozzo Cloud Operations Team

Mar 4, 09:53 UTC
Mar 9, 2026
Completed - The scheduled maintenance has been completed.
Mar 9, 20:35 UTC
Verifying - Verification is currently underway for the maintenance items.
Mar 9, 20:01 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 9, 17:07 UTC
Scheduled - Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 10, 2026, from 17:00 to 21:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.1 to 6.2
Estimated Duration: Up to 4 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Mar 9, 17:06 UTC
Completed - The scheduled maintenance has been completed.
Mar 9, 11:33 UTC
Scheduled - Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 9, 2026, from 17:00 to 21:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.0 to 6.1
Estimated Duration: Up to 4 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Mar 9, 10:34 UTC
Completed - The scheduled maintenance has been completed.
Mar 9, 10:34 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 9, 08:00 UTC
Scheduled - Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 9, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.0 to 6.1
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Mar 3, 08:31 UTC
Mar 8, 2026
Completed - The scheduled maintenance has been completed.
Mar 8, 14:28 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 8, 07:00 UTC
Scheduled - Dear Virtuozzo Customer,

We would like to inform you that our provider will be conducting maintenance to address a critical issue on a network switch. This work is essential to ensure continued reliability and optimal performance of our network infrastructure.

Maintenance Window:
Start: March 08, 2026 07:00 (UTC)
End: March 08, 2026 15:00 (UTC)

This maintenance will impact one server in the US1 IaaS cluster.
Prior to the maintenance window, all workloads running on the affected server will be live-migrated to avoid service disruption.

Thank you for your understanding and cooperation.
If you have any questions, please contact our support team.

Sincerely,
Virtuozzo Cloud Operations Team

Mar 3, 07:56 UTC
Mar 7, 2026

No incidents reported.

Mar 6, 2026

No incidents reported.

Mar 5, 2026
Completed - The scheduled maintenance has been completed.
Mar 5, 16:00 UTC
Verifying - Verification is currently underway for the maintenance items.
Mar 5, 13:47 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 5, 08:00 UTC
Scheduled - Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 5, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.0 to 6.1
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Feb 16, 08:12 UTC
Mar 4, 2026
Completed - The scheduled maintenance has been completed.
Mar 4, 14:50 UTC
Verifying - Verification is currently underway for the maintenance items.
Mar 4, 14:50 UTC
Update - Scheduled maintenance is still in progress. We will provide updates as necessary.
Mar 4, 08:17 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 4, 08:00 UTC
Scheduled - Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 4, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.0 to 6.1
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Feb 16, 08:12 UTC
Mar 3, 2026
Completed - The scheduled maintenance has been completed.
Mar 3, 15:03 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 3, 00:00 UTC
Scheduled - Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 3, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.0 to 6.1
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Feb 16, 08:11 UTC
Mar 2, 2026
Completed - The scheduled maintenance has been completed.
Mar 2, 20:00 UTC
Verifying - Verification is currently underway for the maintenance items.
Mar 2, 17:57 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Mar 2, 08:00 UTC
Scheduled - Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on March 2, 2026, from 08:00 to 20:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.0 to 6.1
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Feb 16, 08:09 UTC
Mar 1, 2026

No incidents reported.

Feb 28, 2026

No incidents reported.

Feb 27, 2026

No incidents reported.

Feb 26, 2026
Completed - The scheduled maintenance has been completed.
Feb 26, 16:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Feb 26, 08:00 UTC
Scheduled - Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on February 26, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.0 to 6.1
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Feb 16, 08:06 UTC
Feb 25, 2026
Completed - The scheduled maintenance has been completed.
Feb 25, 15:04 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Feb 25, 08:00 UTC
Scheduled - Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on February 25, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.0 to 6.1
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Feb 16, 08:05 UTC
Feb 24, 2026
Completed - The scheduled maintenance has been completed.
Feb 24, 16:02 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Feb 24, 08:00 UTC
Scheduled - Dear Virtuozzo Customer,

We would like to inform you of a scheduled maintenance window for our cloud service on February 24, 2026, from 08:00 to 16:00 (UTC).

Maintenance Details

Reason: Software update in location EU3
Software Version: Upgrade from 6.0 to 6.1
Estimated Duration: Up to 8 hours

During the maintenance window, some virtual machines may experience temporary latency.
However, no service downtime is expected while these activities are being performed.

While we will make every effort to minimize any impact, some users may experience intermittent connectivity issues during this period. We recommend planning your activities accordingly and ensuring that any important work or unsaved data is secured prior to the start of maintenance.

We appreciate your patience and understanding as we continue to enhance the reliability and performance of our cloud services.

If you have any questions or concerns, please contact your Technical Account Manager or submit a support ticket.

Sincerely,
Virtuozzo Cloud Operations Team

Feb 16, 08:04 UTC