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S
Sierra Time Zone
GMT -6
12am
3am
6am
9am
12pm
3pm
6pm
9pm
EASST
Easter Island Summer Time
GMT -5
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

6:00 am06:00 S (UTC-6), Oct 10, 2026 = 7:00 am07:00 EASST (UTC-5), Oct 10, 2026

S is 1 hour behind EASST.

S and EASST examples

These examples always use S (UTC-6) and EASST (UTC-5). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

S is 1 hour behind EASST.

How the time difference changes

For most of the year, S is 1 hour behind EASST. At other times of the year, S and EAST have the same time.

For most of the year, working hours of 9:00 am to 5:00 pm in S correspond to 10:00 am to 6:00 pm in EASST. At other times of the year, working hours of 9:00 am to 5:00 pm in S correspond to 9:00 am to 5:00 pm in EAST.For most of the year, working hours of 09:00 to 17:00 in S correspond to 10:00 to 18:00 in EASST. At other times of the year, working hours of 09:00 to 17:00 in S correspond to 09:00 to 17:00 in EAST.

Compare S time with EASST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Sierra Time Zone is 1 hour behind Easter Island Summer Time.
6:00 am06:00 in S is 7:00 am07:00 in EASST

S to EASST call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in S which corresponds to 10am-5pm10:00-17:00 in EASST

6:00 am06:00 Sierra Time Zone (S). Offset UTC -6:00 hours
7:00 am07:00 Easter Island Summer Time (EASST). Offset UTC -5:00 hours

6:00 am06:00 S / 7:00 am07:00 EASST

SEASST
12:00am1:00am
1:00am2:00am
2:00am3:00am
3:00am4:00am
4:00am5:00am
5:00am6:00am
6:00am7:00am
7:00am8:00am
8:00am9:00am
9:00am10:00am
10:00am11:00am
11:00am12:00pm
12:00pm1:00pm
1:00pm2:00pm
2:00pm3:00pm
3:00pm4:00pm
4:00pm5:00pm
5:00pm6:00pm
6:00pm7:00pm
7:00pm8:00pm
8:00pm9:00pm
9:00pm10:00pm
10:00pm11:00pm
11:00pm12:00am
00:0001:00
01:0002:00
02:0003:00
03:0004:00
04:0005:00
05:0006:00
06:0007:00
07:0008:00
08:0009:00
09:0010:00
10:0011:00
11:0012:00
12:0013:00
13:0014:00
14:0015:00
15:0016:00
16:0017:00
17:0018:00
18:0019:00
19:0020:00
20:0021:00
21:0022:00
22:0023:00
23:0000:00

Sierra Time Zone

Offset: S is 6 hours behind Greenwich Mean Time (GMT) and is used in Military

Daylight Saving: Clocks in Sierra Time Zone (S) do not change for daylight saving time, so S stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

S representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -06 - basic short
  • -0600 - basic
  • -06:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Sierra - Military abbreviation for S
  • S - short form of 'Sierra'
Time zones with the GMT -6 offset:
  • CST - Central Standard Time
  • CT - Central Time
  • MDT - Mountain Daylight Time
  • EAST - Easter Island Standard Time
  • GALT - Galapagos Time
  • S - Sierra Time Zone

Easter Island Summer Time

Offset: EASST is 5 hours behind Greenwich Mean Time (GMT) and is used in Pacific

Countries using this time zone: Chile

EASST Time Zone Geo Map
EASST timezone map

Daylight Saving: Easter Island Summer Time (EASST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Easter Island Standard Time (EAST).

Daylight saving time clock moves forward for one hourStart: Easter Island Summer Time (EASST) started on Saturday, September 5, 2026 at 10:00 pm22:00 local time and clocks were set one hour forward to Saturday, September 5, 2026, 11:00 pm23:00. Daylight saving starts annually on the first Saturday of September.

End: Easter Island Summer Time (EASST) ends on Saturday, April 3, 2027 at 10:00 pm22:00 local time and clocks are set one hour back to Saturday, April 3, 2027, 9:00 pm21:00 local standard time instead. Daylight saving ends annually on the first Saturday of April.

See upcoming clock changes worldwide.

EASST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -05 - basic short
  • -0500 - basic
  • -05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Romeo - Military abbreviation for EASST
  • R - short form of 'Romeo'
Time zones with the GMT -5 offset:
  • CDT - Central Daylight Time
  • EST - Eastern Standard Time
  • ET - Eastern Time
  • COT - Colombia Time
  • CST - Cuba Standard Time
  • EASST - Easter Island Summer Time
  • ECT - Ecuador Time
  • PET - Peru Time
  • R - Romeo Time Zone