Time difference between Guam and San Diego
Compare the current local time in Guam and San Diego, see when your working hours overlap, and convert any specific hour between the two timezones.
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Convert a specific time
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Working-hours overlap
When Guam's 9:00–17:00 business hours overlap with San Diego's.
Guam working hours
San Diego working hours
Overlap (both working)
🇬🇺 Guam
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🇺🇸 San Diego
Scheduling across Guam and San Diego
Scheduling between Guam and San Diego is workable but tight. Only 1 hour of standard business hours overlap each day, from 09:00 to 10:00 in Guam (16:00 to 17:00 in San Diego). Recurring meetings often settle within this narrow window.
Quick reference
| 🇬🇺 Guam | 🇺🇸 San Diego | In San Diego it's… |
|---|---|---|
| 06:00 — Early morning | — | — |
| 09:00 — Start of work | — | — |
| 12:00 — Lunchtime | — | — |
| 15:00 — Mid-afternoon | — | — |
| 17:00 — End of work | — | — |
| 20:00 — Evening | — | — |
Daylight saving status
🇬🇺 Guam
Guam does not observe daylight saving time. The local offset is fixed year-round.
🇺🇸 San Diego
Currently in PDT (daylight saving)
Clocks go back to PST
on Sunday 1 November 2026