Updating current time…
CKT
12am
3am
6am
9am
12pm
3pm
6pm
9pm
X
UTC−11
1h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

2:00 am02:00 CKT (UTC-10), Oct 17, 2026 = 1:00 am01:00 X (UTC-11), Oct 17, 2026

CKT is 1 hour ahead of X.

CKT and X examples

These examples always use CKT (UTC-10) and X (UTC-11). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

CKT is 1 hour ahead of X.

How the time difference changes

CKT is 1 hour ahead of X year-round.

Working hours of 9:00 am to 6:00 pm in CKT correspond to 8:00 am to 5:00 pm in X.Working hours of 09:00 to 18:00 in CKT correspond to 08:00 to 17:00 in X.

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

Time Difference

Cook Island Time is 1 hour ahead of X-ray Time Zone.
2:00 am02:00 in CKT is 1:00 am01:00 in X

CKT to X call time
Best time for a conference call or a meeting is between 10am-6pm10:00-18:00 in CKT which corresponds to 9am-5pm09:00-17:00 in X

2:00 am02:00 Cook Island Time (CKT). Offset UTC -10:00 hours
1:00 am01:00 X-ray Time Zone (X). Offset UTC -11:00 hours

2:00 am02:00 CKT / 1:00 am01:00 X

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
CKTX
11:00pm previous day
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10:00pm
23:00 previous day
00:00
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Cook Island Time

Offset: CKT is 10 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Cook Islands

Principal Cities: The largest city in the CKT time zone is Avarua in the Cook Islands, with about 13,373 people. Other major cities in this time zone include Matavera.

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; see upcoming clock changes worldwide.

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

X-ray Time Zone

Offset: X is 11 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: American Samoa, Niue, United States Minor Outlying Islands

Principal Cities: The largest city in the X time zone is Pago Pago in American Samoa, with about 11,500 people. Other major cities in this time zone include Tāfuna, Nu‘uuli, Leone, Faleniu.

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

X representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -11 - basic short
  • -1100 - basic
  • -11:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -1100 - sign character (-) followed by a four digit time providing hours (11) and minutes (00) of the offset. Indicates an offset of eleven hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • X-ray - Military abbreviation for X
  • X - short form of 'X-ray'
Time zones with the GMT -11 offset:
  • NUT - Niue Time
  • SST - Samoa Standard Time
  • X - X-ray Time Zone