Offset
The time difference between Shanghai and San Antonio is 13 hours.
Shanghai (CST) is ahead of San Antonio (CDT).
CST: UTC+8
CDT: UTC-5
San Antonio is currently observing daylight saving time; Shanghai is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Shanghai and San Antonio don't overlap on the same weekday. San Antonio is 13 hours behind Shanghai.
Realistic options: hand off asynchronously, or stretch one side by an hour to catch the other team at the start or end of their day.
This window may shift by an hour during daylight saving time.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
China
- New Year's DayThu, Jan 1
- Chinese New Year (Spring Festival)Tue, Feb 17
- Labour DayFri, May 1
- Dragon Boat FestivalFri, Jun 19
- Mid-Autumn FestivalFri, Sep 25
- National DayThu, Oct 1
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
About these zones
Shanghai uses China Standard Time (CST). To call China, dial +86.
San Antonio uses Central Time (CST, or CDT). To call United States, dial +1.
San Antonio is approximately 7,500 miles northeast of Shanghai.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Shanghai | San Antonio | Day |
|---|---|---|
| 12:00 am | 11:00 am | -1 day |
| 1:00 am | 12:00 pm | -1 day |
| 2:00 am | 1:00 pm | -1 day |
| 3:00 am | 2:00 pm | -1 day |
| 4:00 am | 3:00 pm | -1 day |
| 5:00 am | 4:00 pm | -1 day |
| 6:00 am | 5:00 pm | -1 day |
| 7:00 am | 6:00 pm | -1 day |
| 8:00 am | 7:00 pm | -1 day |
| 9:00 am | 8:00 pm | -1 day |
| 10:00 am | 9:00 pm | -1 day |
| 11:00 am | 10:00 pm | -1 day |
| 12:00 pm | 11:00 pm | -1 day |
| 1:00 pm | 12:00 am | Same day |
| 2:00 pm | 1:00 am | Same day |
| 3:00 pm | 2:00 am | Same day |
| 4:00 pm | 3:00 am | Same day |
| 5:00 pm | 4:00 am | Same day |
| 6:00 pm | 5:00 am | Same day |
| 7:00 pm | 6:00 am | Same day |
| 8:00 pm | 7:00 am | Same day |
| 9:00 pm | 8:00 am | Same day |
| 10:00 pm | 9:00 am | Same day |
| 11:00 pm | 10:00 am | Same day |
Daylight saving time
San Antonio observes daylight saving time; Shanghai does not. The offset between the two zones changes when San Antonio transitions: on Sunday, November 1, 2026, clocks fall back from CDT to CST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:04 AM
- Sunset
- 6:58 PM
- Day length
- 13h 54m
- Sunrise
- 6:48 AM
- Sunset
- 8:34 PM
- Day length
- 13h 45m
Cities in these zones
Other cities in China Standard Time
Other cities in Central Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in China Standard Time
- PVG
- SHA
- PEK
- PKX
- SZX
- CAN
- FUO
- CTU
- TFU
- TSN
Airports in Central Time
- GYY
- MDW
- ORD
- HOU
- IAH
- SAT
- DAL
- DFW
- AUS
- BNA
Related conversions
Common conversions
- What is 9:00 am Shanghai in San Antonio?
- 9:00 am Shanghai is 8:00 pm San Antonio, the previous day.
- What is 12:00 pm Shanghai in San Antonio?
- 12:00 pm Shanghai is 11:00 pm San Antonio, the previous day.
- What is 12:30 pm Shanghai in San Antonio?
- 12:30 pm Shanghai is 11:30 pm San Antonio, the previous day.
- What is 2:00 pm Shanghai in San Antonio?
- 2:00 pm Shanghai is 1:00 am San Antonio.
- What is 5:00 pm Shanghai in San Antonio?
- 5:00 pm Shanghai is 4:00 am San Antonio.
- What is 11:30 pm Shanghai in San Antonio?
- 11:30 pm Shanghai is 10:30 am San Antonio.