Sierra Time Zone — S
Military letter S (Sierra) maps to the UTC-6 offset from Coordinated Universal Time. Covers the U.S. Central Time zone, Mexico, and Central America.
Sierra (S) — UTC-6
02:05:06
Saturday, 9 May 2026 GMT-6
About Sierra
UTC offset
UTC-6
Letter S = Sierra in the NATO phonetic alphabet.
Where S is used
Covers the U.S. Central Time zone, Mexico, and Central America.
Other military letters
A Alpha UTC+1 B Bravo UTC+2 C Charlie UTC+3 D Delta UTC+4 E Echo UTC+5 F Foxtrot UTC+6 G Golf UTC+7 H Hotel UTC+8 I India UTC+9 K Kilo UTC+10 L Lima UTC+11 M Mike UTC+12 N November UTC-1 O Oscar UTC-2 P Papa UTC-3 Q Quebec UTC-4 R Romeo UTC-5 T Tango UTC-7 U Uniform UTC-8 V Victor UTC-9 W Whiskey UTC-10 X X-ray UTC-11 Y Yankee UTC-12 Z Zulu UTC