Time difference between San Diego and Tokyo

Does the gap change?

The gap isn't fixed. San Diego changes its clocks for daylight saving time and Tokyo doesn't, so the difference moves during the year:

• From around March 15, 2027: Tokyo ahead by 16 hours
• From around November 8, 2027: Tokyo ahead by 17 hours

Best time to meet

Office hours in Tokyo and San Diego overlap for about 1 hour a day, from 4 PM to 5 PM in San Diego (9 AM to 10 AM in Tokyo).

City details

• Time zone and daylight saving in San Diego
• Time zone and daylight saving in Tokyo

San Diego to Tokyo, hour by hour

San Diego		Tokyo
12 AM	Night	5 PM	Early or late
1 AM	Night	6 PM	Early or late
2 AM	Night	7 PM	Early or late
3 AM	Night	8 PM	Early or late
4 AM	Night	9 PM	Early or late
5 AM	Night	10 PM	Night
6 AM	Night	11 PM	Night
7 AM	Early or late	12 AM (Mon)	Night
8 AM	Early or late	1 AM (Mon)	Night
9 AM	Work hours	2 AM (Mon)	Night
10 AM	Work hours	3 AM (Mon)	Night
11 AM	Work hours	4 AM (Mon)	Night
12 PM	Work hours	5 AM (Mon)	Night
1 PM	Work hours	6 AM (Mon)	Night
2 PM	Work hours	7 AM (Mon)	Early or late
3 PM	Work hours	8 AM (Mon)	Early or late
4 PM	Work hours	9 AM (Mon)	Work hours
5 PM	Early or late	10 AM (Mon)	Work hours
6 PM	Early or late	11 AM (Mon)	Work hours
7 PM	Early or late	12 PM (Mon)	Work hours
8 PM	Early or late	1 PM (Mon)	Work hours
9 PM	Early or late	2 PM (Mon)	Work hours
10 PM	Night	3 PM (Mon)	Work hours
11 PM	Night	4 PM (Mon)	Work hours

Based on today's clocks. Work hours are 9 AM to 5 PM.