Home > Time Zones > Abbreviations > S – Sierra Time Zone

S – Sierra Time Zone (Military Time)

Also known as: s – Sierra Time, Sierra

Time zone map of S
Areas with same time currently (UTC -6:00).
Currently has same time zone offset as S (UTC -6:00) but different time zone name.

Sierra Time Zone (S) is 6 hours behind Coordinated Universal Time (UTC). This time zone is a military time zone.

See full time zone map

Email time zone indicator: -0600

An email sent from someone in the Sierra Time Zone (S) time zone will have the time zone listed as "-0600" in the headers of the email. (However, "-0600" does not have to be in Sierra Time Zone, as other time zones could have the same UTC offset).

Where and when is S observed?

Sierra Time Zone is often used in aviation and the military as another name for UTC -6:00. Sierra Time Zone is also commonly used at sea between longitudes 97.5° West and 82.5° West.

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

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

Sierra time now


Monday, January 26, 2015

Military time displayed using the 24 hour clock.

  • UTC Offset: UTC -6:00
  • 1 hour behind New York

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Example cities

Costa Rica – San Jose (All Year)

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