Where and When is Y Observed?

Yankee Time Zone is often used in aviation and the military as another name for UTC -12. Yankee Time Zone is also commonly used at sea between longitudes 172.5° East and 172.5° West.

The letter Y may be used as a suffix to denote a time being in the Yankee Time Zone, such as 08:00Y or 0800Y. This is spoken as "zero eight hundred Yankee".

Only showing up to 16 cities, others may also be observing Yankee Time Zone.

This time zone is in use, but not observed in any location at this time.

Other Time Zones in UTC -12

Some time zones exist that have the same offset as Y, but can be found under a different name:

• AoE – Anywhere on Earth

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