Chicago
Exact time synced with atomic clocks (IANA + NTP)
Wednesday, May 20, 2026
United States · America/Chicago · CDT
Chicago and San Francisco Time Difference
Chicago is 2h ahead of San Francisco
San Francisco
Exact time synced with atomic clocks (IANA + NTP)
Wednesday, May 20, 2026
United States · America/Los_Angeles · PDT
Best time for work calls
If you are scheduling a call between Chicago and San Francisco, the overlap window is limited to typical business hours. When it is 11 am in Chicago it is 9 am in San Francisco — a workable window for scheduling. The latest reasonable overlap is around 5 pm in Chicago (3 pm in San Francisco). Outside this window there is effectively no good overlap for regular office hours.
Best time for family calls
Chicago and San Francisco have a comfortable window for a family call — no awkward alarms required. Chicago is 2 hours ahead of San Francisco, which gives you 4 hours of genuine overlap when both sides are free. Aim for between 6 pm and 10 pm in Chicago — that lands at 4 pm to 8 pm in San Francisco, after the school run and before anyone's ready for bed. For a Sunday catch-up or a midweek check-in, this is the sweet spot.
Chicago
Memorial Day
May 25in 5dJuneteenth National Independence Day
Jun 19in 30dIndependence Day
Jul 3in 44d
Daylight Cycle
🌅 Dawn4:51:51 AM
☀️ Sunrise5:24:25 AM
🌞 Solar Noon12:48:29 PM
🌇 Golden Hour7:31:55 PM
🌆 Sunset8:12:33 PM
🌃 Dusk8:45:06 PM
Day length14:48:07
Data via sunrisesunset.io
Current Weather
Condition🌙 Clear sky
Temperature9°C
Feels like6°C
Humidity69%
Wind10 mph N
Data via Open-Meteo · Updates every 30 min
Moon Phase
Phase🌒 Waxing Crescent
Illumination24%
CycleWaxing
Moon age4.8 days
Moonrise10:03
Moonset00:40
San Francisco
Memorial Day
May 25in 5dJuneteenth National Independence Day
Jun 19in 30dIndependence Day
Jul 3in 44d
Daylight Cycle
🌅 Dawn5:26:47 AM
☀️ Sunrise5:56:39 AM
🌞 Solar Noon1:07:38 PM
🌇 Golden Hour7:40:53 PM
🌆 Sunset8:18:38 PM
🌃 Dusk8:48:30 PM
Day length14:21:59
Data via sunrisesunset.io
Current Weather
Condition☀️ Clear sky
Temperature18°C
Feels like15°C
Humidity54%
Wind13 mph W
Data via Open-Meteo · Updates every 30 min
Moon Phase
Phase🌒 Waxing Crescent
Illumination24%
CycleWaxing
Moon age4.8 days
Moonrise10:43
Moonset00:50