Time difference between Tokyo and San Antonio
−14 hSan Antonio is 14 hours behind Tokyo.
Observatory log
Tokyo and San Antonio, compared
- 01Difference now
San Antonio is 14 hours behind Tokyo.
Tokyo: JST (UTC+9) · San Antonio: CDT (UTC−5)
Next changeFrom 1 November 2026: San Antonio is 15 hours behind Tokyo.
- 02Through 2026–2027
- 1 January 2026 – 8 March 2026−15 h
- 8 March 2026 – 1 November 2026−14 h
- 1 November 2026 – 14 March 2027−15 h
- 14 March 2027 – 7 November 2027−14 h
- 7 November 2027 – 31 December 2027−15 h
Difference of San Antonio from Tokyo. It changes on the days either place changes its clocks (dates local to that place).
- 03Shared working hours
Their working days never overlap.
Counted as 09:00–17:00 local time on each place’s own working days, for the next seven days.
- 04Best time to meet
09:00–12:00 in Tokyo = 19:00–22:00 in San Antonio
No shared office hours: this is early or late for one side (Tue–Fri).
Also possible: Tue–Fri: 06:00–07:00 in Tokyo = 16:00–17:00 in San Antonio (yesterday) · 1 h.
- 05Weekend
Tokyo: Saturday and Sunday
San Antonio: Saturday and Sunday
24 hours
A day in Tokyo, in San Antonio
| Tokyo | San Antonio | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 10:00Yesterday | |
| 01:00 | 11:00Yesterday | |
| 02:00 | 12:00Yesterday | |
| 03:00 | 13:00Yesterday | |
| 04:00 | 14:00Yesterday | |
| 05:00 | 15:00Yesterday | |
| 06:00 | 16:00Yesterday | |
| 07:00 | 17:00Yesterday | |
| 08:00 | 18:00Yesterday | |
| 09:00 | 19:00Yesterday | |
| 10:00 | 20:00Yesterday | |
| 11:00 | 21:00Yesterday | |
| 12:00 | 22:00Yesterday | |
| 13:00 | 23:00Yesterday | |
| 14:00 | 00:00 | |
| 15:00 | 01:00 | |
| 16:00 | 02:00 | |
| 17:00 | 03:00 | |
| 18:00 | 04:00 | |
| 19:00 | 05:00 | |
| 20:00 | 06:00 | |
| 21:00 | 07:00 | |
| 22:00 | 08:00 | |
| 23:00 | 09:00 |
Working hoursEarly or eveningNightWeekend
Plan a meeting: Tokyo and San Antonio
More time differences with Tokyo
Questions
Asked about Tokyo and San Antonio
What is the time difference between Tokyo and San Antonio?
San Antonio is 14 hours behind Tokyo. This holds until 1 November 2026; then San Antonio is 15 hours behind Tokyo.
What is the best time for a call between Tokyo and San Antonio?
No shared office hours. The least awkward windows, early or late for one side: Tue–Fri: 09:00–12:00 in Tokyo = 19:00–22:00 in San Antonio (yesterday) · 3 h; Tue–Fri: 06:00–07:00 in Tokyo = 16:00–17:00 in San Antonio (yesterday) · 1 h.
When does the time difference between Tokyo and San Antonio change?
In the next 12 months it changes on: 1 November 2026 (−15 h); 14 March 2027 (−14 h).