San Francisco to Colombo — 12 hours 30 minutes Difference
San Francisco is behind by 12 hours 30 minutes
San Francisco ↔ Colombo
No overlap — one side will join outside working hours
San Francisco
Colombo
Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.
Quick time conversions: San Francisco → Colombo
Common reference points to help you plan across the time difference.
Setting a 8:00 AM alarm in San Francisco? That's 8:30 PM for Colombo.
I'm in San Francisco at 4:00 PM — what time is my colleague in Colombo seeing?—4:30 AM(+1 day)
6:00 AMin San Francisco→6:30 PMin Colombo
A 7:00 PM start in San Francisco means 7:30 AM for your contact in Colombo.(+1 day)
11:00 AMin San Francisco→11:30 PMin Colombo
What time is 10:00 AM San Francisco in Colombo?—10:30 PM
5:00 PMin San Francisco→5:30 AMin Colombo(+1 day)
Frequently Asked Questions
How far ahead or behind is Colombo from San Francisco?
The offset is 12 hours 30 minutes — San Francisco is behind Colombo. Timezones: America/Los_Angeles and Asia/Colombo.
Is there a mutual working window between San Francisco and Colombo?
There is no business hours overlap between San Francisco and Colombo (09:00–17:00). One party will need to join outside normal hours.
Will daylight saving affect my San Francisco–Colombo meetings this week?
The 12 hours 30 minutes difference between San Francisco and Colombo is stable — no DST changes expected in the next 7 days.
When it is 12:00 noon in San Francisco, what time is it in Colombo?
Noon in San Francisco corresponds to 12:30 AM in Colombo.
How can I quickly find the current time in Colombo from San Francisco?
Type any time in the input bar (e.g. "9am", "14:30") or use the slider. All locations including Colombo update at the same time.
Does San Francisco have holidays coming up that could affect scheduling?
Yes — San Francisco has an upcoming public holiday: Labour Day on September 7. Check the holiday panel above before confirming meetings.
What timezone is San Francisco in, and what timezone is Colombo in?
San Francisco follows America/Los_Angeles. Colombo uses Asia/Colombo. Together they are 12 hours 30 minutes apart.