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CKT
Cook Island Time
GMT -10
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Y
Yankee Time Zone
GMT -12
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

The selected date and time will appear here when the converter loads.

CKT and Y examples

These examples always use CKT (UTC-10) and Y (UTC-12). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

CKT is 2 hours ahead of Y.

How the time difference changes

CKT is 2 hours ahead of Y year-round.

Working hours of 9:00 am to 5:00 pm in CKT correspond to 7:00 am to 3:00 pm in Y.

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

Time Difference

Cook Island Time is 2 hours ahead of Yankee Time Zone
2:00 am02:00 in CKT is 12:00 am00:00 in Y

CKT to Y call time
Best time for a conference call or a meeting is between 11am-5pm in CKT which corresponds to 9am-3pm in Y

2:00 am02:00 Cook Island Time (CKT). Offset UTC -10:00 hours
12:00 am00:00 Yankee Time Zone (Y). Offset UTC -12:00 hours

2:00 am02:00 CKT / 12:00 am00:00 Y

CKTY
12am (midnight)10pm
1am11pm
2am12am (midnight)
3am1am
4am2am
5am3am
6am4am
7am5am
8am6am
9am7am
10am8am
11am9am
12pm (noon)10am
1pm11am
2pm12pm (noon)
3pm1pm
4pm2pm
5pm3pm
6pm4pm
7pm5pm
8pm6pm
9pm7pm
10pm8pm
11pm9pm
00:0022:00
01:0023:00
02:0000:00
03:0001:00
04:0002:00
05:0003:00
06:0004:00
07:0005:00
08:0006:00
09:0007:00
10:0008:00
11:0009:00
12:0010:00
13:0011:00
14:0012:00
15:0013:00
16:0014:00
17:0015:00
18:0016:00
19:0017:00
20:0018:00
21:0019:00
22:0020:00
23:0021:00

Cook Island Time

Offset: CKT is 10 hours behind Greenwich Mean Time (GMT) and is used in Pacific

Countries using this time zone: Cook Islands

Principal Cities: The largest city in the CKT time zone is Avarua in Cook Islands, with about 13,373 people.

Daylight Saving: Clocks in Cook Island Time (CKT) do not change for daylight saving time, so CKT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

CKT Time Zone Geo Map
CKT timezone map

CKT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -10 - basic short
  • -1000 - basic
  • -10:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -1000 - sign character (-) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates an offset of ten hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Whiskey - Military abbreviation for CKT
  • W - short form of 'Whiskey'
Time zones with the GMT -10 offset:
  • HAST - Hawaii-Aleutian Standard Time
  • CKT - Cook Island Time
  • HST - Hawaii Standard Time
  • TAHT - Tahiti Time
  • W - Whiskey Time Zone

Yankee Time Zone

Offset: Y is 12 hours behind Greenwich Mean Time (GMT) and is used in Military

Daylight Saving: Clocks in Yankee Time Zone (Y) do not change for daylight saving time, so Y stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

Y representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -12 - basic short
  • -1200 - basic
  • -12:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -1200 - sign character (-) followed by a four digit time providing hours (12) and minutes (00) of the offset. Indicates an offset of twelve hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Yankee - Military abbreviation for Y
  • Y - short form of 'Yankee'