When does New Year start first and last?

New Year arrives first in the Line Islands of Kiribati (UTC+14) and last in Baker Island (UTC-12). The full cascade from the earliest to the latest celebration spans 26 hours. Samoa (UTC+13) and American Samoa (UTC-11), despite being only about 100 kilometers apart, are among the first and last to celebrate.

How should I handle year-end deadlines across time zones?

Always specify the exact zone for any deadline. "End of day December 31" is ambiguous when your team spans 15+ hours of offset. State the deadline as a specific UTC time or a named zone (e.g., "11:59 PM PT on December 31"), and convert it for every affected location.

What holidays should I account for in Q4 besides Christmas?

Major Q4 and year-end holidays include Diwali (October/November), Thanksgiving (US, late November), Hanukkah (November/December), Christmas (December 25), Boxing Day (December 26, UK/Canada/Australia), and Lunar New Year (January/February). Dates vary by year for religious observances tied to lunar calendars.

End-of-Year Scheduling Across Time Zones

October 1, 2026

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Frequently Asked Questions

When does New Year start first and last?: New Year arrives first in the Line Islands of Kiribati (UTC+14) and last in Baker Island (UTC-12). The full cascade from the earliest to the latest celebration spans 26 hours. Samoa (UTC+13) and American Samoa (UTC-11), despite being only about 100 kilometers apart, are among the first and last to celebrate.
How should I handle year-end deadlines across time zones?: Always specify the exact zone for any deadline. "End of day December 31" is ambiguous when your team spans 15+ hours of offset. State the deadline as a specific UTC time or a named zone (e.g., "11:59 PM PT on December 31"), and convert it for every affected location.
What holidays should I account for in Q4 besides Christmas?: Major Q4 and year-end holidays include Diwali (October/November), Thanksgiving (US, late November), Hanukkah (November/December), Christmas (December 25), Boxing Day (December 26, UK/Canada/Australia), and Lunar New Year (January/February). Dates vary by year for religious observances tied to lunar calendars.