Clockjumper

Time difference

Columbus to San Francisco Time Difference

San Francisco is 3 hours behind Columbus — when it's 12:00 PM in Columbus, it's 9:00 AM in San Francisco. (Columbus (America/New_York, EDT); San Francisco (America/Los_Angeles, PDT).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.

Quick answer

San Francisco is 3 hours behind Columbus. The best window for a call is 12 PM–5 PM in Columbus, which is 9 AM–2 PM in San Francisco — a 5-hour overlap inside 9 AM–5 PM on both sides. Columbus and San Francisco change their clocks together (or don't change at all), so the time difference between them stays the same all year.

  • When it's 9:00 AM in Columbus, it's 6:00 AM in San Francisco.
  • When it's 9:00 AM in San Francisco, it's 12:00 PM in Columbus.

San Francisco is currently 3 hours behind Columbus.

Columbus • EDT
5:35 PM
Sunday, Aug 23
San Francisco • PDT
2:35 PM
Sunday, Aug 23

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Best times to meet

The 9 AM – 5 PM business windows in Columbus and San Francisco overlap for 5 hours. 12 PM–5 PM in Columbus is 9 AM–2 PM in San Francisco. Aim somewhere in the middle of that window so neither side starts cold or finishes drained.

Quick conversion table

ColumbusSan Francisco
12 AM9:00 PM (prev day)
1 AM10:00 PM (prev day)
2 AM11:00 PM (prev day)
3 AM12:00 AM
4 AM1:00 AM
5 AM2:00 AM
6 AM3:00 AM
7 AM4:00 AM
8 AM5:00 AM
9 AM6:00 AM
10 AM7:00 AM
11 AM8:00 AM
12 PM9:00 AM
1 PM10:00 AM
2 PM11:00 AM
3 PM12:00 PM
4 PM1:00 PM
5 PM2:00 PM
6 PM3:00 PM
7 PM4:00 PM
8 PM5:00 PM
9 PM6:00 PM
10 PM7:00 PM
11 PM8:00 PM

Daylight saving

On November 1, 2026, both Columbus and San Francisco shift for daylight saving. After that, San Francisco will be 3 hours behind Columbus (currently 3 hours behind Columbus). The converter and the tables above always reflect the correct offset for the date you pick.

  • Columbus is currently observing daylight saving time.
  • San Francisco is currently observing daylight saving time.

Frequently asked questions

Is San Francisco ahead of or behind Columbus?
San Francisco is 3 hours behind Columbus.
How many hours behind Columbus is San Francisco?
San Francisco is 3 hours behind Columbus.
What time is 9 AM in Columbus in San Francisco?
9:00 AM in Columbus is 6:00 AM in San Francisco.
What time is noon in Columbus in San Francisco?
12:00 PM in Columbus is 9:00 AM in San Francisco.
What time is 5 PM in Columbus in San Francisco?
5:00 PM in Columbus is 2:00 PM in San Francisco. Useful for end-of-day handoffs between the two offices.
What time is 3 PM in Columbus in San Francisco?
3:00 PM in Columbus is 12:00 PM in San Francisco.
Is Columbus currently observing daylight saving time?
Columbus is currently observing daylight saving time (summer time).
Is San Francisco currently observing daylight saving time?
San Francisco is currently observing daylight saving time (summer time).
Do Columbus and San Francisco observe daylight saving?
On November 1, 2026, both Columbus and San Francisco shift for daylight saving. After that, San Francisco will be 3 hours behind Columbus (currently 3 hours behind Columbus). The converter and the tables above always reflect the correct offset for the date you pick.
When is the best time to call San Francisco from Columbus?
Aim for 12 PM–5 PM in Columbus, which is 9 AM–2 PM in San Francisco.
When is the best time to call Columbus from San Francisco?
Aim for 9 AM–2 PM in San Francisco, which is 12 PM–5 PM in Columbus.
Columbus (EDT) to San Francisco (PDT) — how do I convert quickly?
Subtract 3 hours from Columbus local time to get San Francisco local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.

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