Meeting time

Best time to meet: Boston and San Diego

Boston is 3 hours ahead of San Diego right now. Their working days overlap for 5 hours: 12 PM to 5 PM in Boston, which is 9 AM to 2 PM in San Diego. The easiest time to meet is 1:30 PM in Boston (10:30 AM in San Diego).

Tue 10:59 AMBoston · Eastern Standard TimeTue 7:59 AMSan Diego · Pacific Standard Time
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Hour by hour

With the clocks as they are on November 10, 2026, Boston time on the left. A working day here is 9 AM to 5 PM.

BostonSan Diego
6 AM3 AMBoth off
7 AM4 AMBoth off
8 AM5 AMBoth off
9 AM6 AMBoston at work
10 AM7 AMBoston at work
11 AM8 AMBoston at work
12 PM9 AMBoth at work
1 PM10 AMBoth at work
2 PM11 AMBoth at work
3 PM12 PMBoth at work
4 PM1 PMBoth at work
5 PM2 PMSan Diego at work
6 PM3 PMSan Diego at work
7 PM4 PMSan Diego at work
8 PM5 PMBoth off
9 PM6 PMBoth off
10 PM7 PMBoth off

When the clocks change

The gap moves when either city changes its clocks. The next twelve months:

DatesBoston isBoth at work (Boston time)Easiest (Boston / San Diego)
Now to March 14, 20273 hours ahead12 PM–5 PM (5 hours)1:30 PM / 10:30 AM
March 14, 2027 to March 14, 2027
clocks in Boston go forward		4 hours ahead1 PM–5 PM (4 hours)2 PM / 10 AM
March 14, 2027 to November 7, 2027
clocks in San Diego go forward		3 hours ahead12 PM–5 PM (5 hours)1:30 PM / 10:30 AM
November 7, 2027 to November 7, 2027
clocks in Boston go back		2 hours ahead11 AM–5 PM (6 hours)1:30 PM / 11:30 AM
November 7, 2027 onward
clocks in San Diego go back		3 hours ahead12 PM–5 PM (5 hours)1:30 PM / 10:30 AM

Boston keeps the same clock as New York; San Diego keeps the same clock as San Francisco.

Questions people ask

What time is it in San Diego when it is 9 AM in Boston?
6 AM in San Diego, while Boston is 3 hours ahead.
When is the best time for a call between Boston and San Diego?
1:30 PM in Boston, which is 10:30 AM in San Diego. Both cities are at work from 12 PM to 5 PM Boston time.
Does the time difference between Boston and San Diego change during the year?
Yes — it changes 4 times in the next twelve months, when the clocks go forward or back; the dates are in the table above.

More cities

London and Boston3 hours of shared working day · meet at 3 PM London timeSan Francisco and Boston5 hours of shared working day · meet at 10:30 AM San Francisco timeLos Angeles and Boston5 hours of shared working day · meet at 10:30 AM Los Angeles timeBangalore and BostonNo shared working hours · fairest at 6 PM Bangalore timeSingapore and BostonNo shared working hours · fairest at 7 AM Singapore timeSydney and BostonNo shared working hours · fairest at 8:30 AM Sydney timeTokyo and BostonNo shared working hours · fairest at 7:30 AM Tokyo timeBerlin and Boston2 hours of shared working day · meet at 4 PM Berlin timeParis and Boston2 hours of shared working day · meet at 4 PM Paris timeChicago and Boston7 hours of shared working day · meet at 10 AM Chicago timeDubai and BostonNo shared working hours · fairest at 5 PM Dubai timeMumbai and BostonNo shared working hours · fairest at 6 PM Mumbai time

Every city from Boston · Every city from San Diego · All cities · Plan across more than two cities

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