Saint John's (Antigua) to Tokyo Time Difference (2026)

Tokyo is 13 hours ahead of Saint John's (Antigua). Standard 9 AM–5 PM business hours in Saint John's (Antigua) and Tokyo do not overlap, so a live call needs one side outside normal hours. Neither Saint John's (Antigua) nor Tokyo is changing for daylight saving in the next twelve months, so the time difference stays constant.

• When it's 9:00 AM in Saint John's (Antigua), it's 10:00 PM in Tokyo.
• When it's 9:00 AM in Tokyo, it's 8:00 PM the previous day in Saint John's (Antigua).

Tokyo is currently 13 hours ahead of Saint John's (Antigua).

Best times to meet

Standard 9 AM – 5 PM hours in Saint John's (Antigua) and Tokyo do not overlap. The least-bad options are an early start in one city or a late evening call in the other — for example a 7–8 AM meeting in Saint John's (Antigua), or a 6–8 PM meeting in Tokyo.

Quick conversion table

Daylight saving

The time difference between these two cities stays the same over the next twelve months — neither zone is changing for daylight saving in that window.

• Saint John's (Antigua) does not observe daylight saving time.
• Tokyo does not observe daylight saving time.

Frequently asked questions

Is Tokyo ahead of or behind Saint John's (Antigua)?

Tokyo is 13 hours ahead of Saint John's (Antigua).

How many hours ahead of Saint John's (Antigua) is Tokyo?

Tokyo is 13 hours ahead of Saint John's (Antigua).

What time is 9 AM in Saint John's (Antigua) in Tokyo?

9:00 AM in Saint John's (Antigua) is 10:00 PM in Tokyo.

What time is noon in Saint John's (Antigua) in Tokyo?

12:00 PM in Saint John's (Antigua) is 1:00 AM the next day in Tokyo.

What time is 5 PM in Saint John's (Antigua) in Tokyo?

5:00 PM in Saint John's (Antigua) is 6:00 AM the next day in Tokyo. Useful for end-of-day handoffs between the two offices.

What time is 3 PM Saint John's (Antigua) in Tokyo?

3:00 PM in Saint John's (Antigua) is 4:00 AM the next day in Tokyo.

Is Saint John's (Antigua) currently observing daylight saving time?

Saint John's (Antigua) does not observe daylight saving time — its UTC offset stays the same all year.

Is Tokyo currently observing daylight saving time?

Tokyo does not observe daylight saving time — its UTC offset stays the same all year.

Do Saint John's (Antigua) and Tokyo observe daylight saving?

The time difference between these two cities stays the same over the next twelve months — neither zone is changing for daylight saving in that window.

When is the best time to call Tokyo from Saint John's (Antigua)?

Saint John's (Antigua) and Tokyo business hours don't overlap. The closest options are early mornings in Saint John's (Antigua) or late evenings, when one side stretches outside 9–5.

When is the best time to call Saint John's (Antigua) from Tokyo?

Tokyo and Saint John's (Antigua) business hours don't overlap. The closest options are early mornings in Tokyo or late evenings, when one side stretches outside 9–5.

Saint John's (Antigua) (AST) to Tokyo (GMT+9) — how do I convert quickly?

Add +13 hours to Saint John's (Antigua) local time to get Tokyo local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.

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