Where and When is R Observed?

Romeo Time Zone is often used in aviation and the military as another name for UTC -5. Romeo Time Zone is also commonly used at sea between longitudes 82.5° West and 67.5° West.

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

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

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

Other Time Zones in UTC -5

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

• ACT – Acre Time
• CDT – Central Daylight Time
• CIST – Cayman Islands Standard Time
• COT – Colombia Time
• CST – Cuba Standard Time
• EASST – Easter Island Summer Time
• ECT – Ecuador Time
• EST – Eastern Standard Time
• PET – Peru Time