San Francisco Tesistan to Tokyo Time Difference

24-Hour Comparison

Each column is the same moment in both cities, starting from right now and rolling forward 24 hours — daylight saving is already accounted for.

Best Time to Call

On a typical weekday (Monday–Friday).

San Francisco Tesistan and Tokyo have little to no overlap in typical business hours (9 AM–5 PM) — an early morning or evening call works best for one side.

Frequently Asked Questions

What is the time difference between San Francisco Tesistan and Tokyo?

Tokyo is 15 hours ahead of San Francisco Tesistan. San Francisco Tesistan is currently UTC-6 and Tokyo is UTC+9.

Is Tokyo ahead of or behind San Francisco Tesistan?

Tokyo is ahead of San Francisco Tesistan.

What is the best time to call Tokyo from San Francisco Tesistan?

San Francisco Tesistan and Tokyo have little to no overlap in typical business hours (9 AM–5 PM), even on a weekday — an early morning or evening call works best for one side.

Does the time difference between San Francisco Tesistan and Tokyo change during the year?

No. Neither city's daylight saving schedule changes the offset between them.