Updating current time…
Y
12am
3am
6am
9am
12pm
3pm
6pm
9pm
MART
UTC−9:30
2h 30m ahead
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

12:00 am00:00 Y (UTC-12), Nov 9, 2026 = 2:30 am02:30 MART (UTC-9:30), Nov 9, 2026

Y is 2 hours and 30 minutes behind MART.

Y and MART examples

These examples always use Y (UTC-12) and MART (UTC-9:30). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

Y is 2 hours and 30 minutes behind MART.

How the time difference changes

Y is 2 hours and 30 minutes behind MART year-round.

Working hours of 9:00 am to 6:00 pm in Y correspond to 11:30 am to 8:30 pm in MART.Working hours of 09:00 to 18:00 in Y correspond to 11:30 to 20:30 in MART.

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

Time Difference

Yankee Time Zone is 2 hours and 30 minutes behind Marquesas Time.
12:00 am00:00 in Y is 2:30 am02:30 in MART

Y to MART call time
Best time for a conference call or a meeting is between 9am-3:30pm09:00-15:30 in Y which corresponds to 11:30am-6pm11:30-18:00 in MART.

12:00 am00:00 Yankee Time Zone (Y). Offset UTC -12:00 hours
2:30 am02:30 Marquesas Time (MART). Offset UTC -9:30 hours

12:00 am00:00 Y / 2:30 am02:30 MART

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
YMART
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12:30am next day
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Yankee Time Zone

Offset: Y is 12 hours behind Greenwich Mean Time (GMT).

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; see upcoming clock changes worldwide.

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'

Marquesas Time

Offset: MART is 9 hours and 30 minutes behind Greenwich Mean Time (GMT).

Countries using this time zone: French Polynesia

Principal Cities: The largest city in the MART time zone is Atuona in French Polynesia, with about 1,762 people. Other major cities in this time zone include Taiohae.

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

MART representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -0930 - basic
  • -09:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0930 - sign character (-) followed by a four digit time providing hours (09) and minutes (30) of the offset. Indicates an offset of nine hours and thirty minutes to the west of the zero meridian.