Shanghai San AntonioTime Converter
Shanghai (GMT+8, UTC+8) is currently 13 hours ahead of San Antonio (CDT, UTC−5). Compare live clocks, convert any hour, and find times to meet.
Quick answer
When it's in Shanghai, it's the previous day in San Antonio.
Shanghai (GMT+8) runs 13 hours ahead of San Antonio (CST/CDT). A 9-to-5 workday on one side lands in the other side's evening or night, so the two cities share almost no normal working hours — edge-of-day calls are the trick.
- Time difference
- −13h 00m
- Shanghai
- UTC+8
- San Antonio
- UTC−5
- Best call window
- Outside 9–6
Shanghai to San Antonio conversion table
The next 12 hours in Shanghai and the matching local time in San Antonio. The current hour is highlighted; drag the converter's slider and the table follows.
| Shanghai · GMT+8 | San Antonio · CDT |
|---|---|
| NOW Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Best time to meet between Shanghai & San Antonio
Working hours are 9am–6pm in each city. The bright band is where they overlap — when both sides are at their desks.
Daylight saving shifts this gap by up to 1 hour
The difference between Shanghai and San Antonio swings between 14 and 13 hours across the year as each side starts or ends daylight saving. Shanghai does not observe daylight saving time. Clocks in San Antonio move back 1 hour to CST (UTC−6) on Sunday, November 1, 2026. This page always shows the live, DST-aware difference.
Related time zone conversions
Jump straight to another pair — every combination is a live tool, not an article.
From Shanghai
To San Antonio
One source of truth — for you and your AI
This page exposes the same answer as structured data, so when you ask an assistant "what's 9am Shanghai time in San Antonio?", it can cite the exact, DST-aware result — not a stale blog post.
- Schema.org JSON-LD on every converter page
- A machine-readable facts island with IANA zones and every possible offset
- Live times in <time datetime> elements with explicit UTC offsets
{
"pair": "Shanghai → San Antonio",
"url": "https://worldclock.pro/en/convert/shanghai-to-san-antonio",
"from": {
"name": "Shanghai",
"type": "city",
"abbreviation": "GMT+8",
"daylightAbbreviation": null,
"iana": "Asia/Shanghai",
"standardUtcOffset": "+08:00",
"daylightUtcOffset": null,
"referenceCity": "Shanghai"
},
"to": {
"name": "San Antonio",
"type": "city",
"abbreviation": "CST",
"daylightAbbreviation": "CDT",
"iana": "America/Chicago",
"standardUtcOffset": "-06:00",
"daylightUtcOffset": "-05:00",
"referenceCity": "San Antonio"
},
"currentDifferenceMinutes": -780,
"possibleDifferencesMinutes": [
-840,
-780
],
"note": "Between the regions that use these zones the difference is 14 and 13 hours across the year, depending on daylight saving on each side. The clocks on this page show the named zones themselves, which are fixed."
}
Frequently asked questions
What is the time difference between Shanghai and San Antonio?
Shanghai is currently 13 hours ahead of San Antonio. Shanghai is on GMT+8 (UTC+8) and San Antonio is on CDT (UTC−5). The difference can change when either side starts or ends daylight saving time.
Is San Antonio ahead of or behind Shanghai?
San Antonio is currently 13 hours behind Shanghai.
When it is 9:00 AM in Shanghai, what time is it in San Antonio?
When it is 9:00 AM on a Monday in Shanghai, it is 8:00 PM the previous day in San Antonio.
Do Shanghai and San Antonio observe daylight saving time?
Shanghai does not observe daylight saving time. Clocks in San Antonio move back 1 hour to CST (UTC−6) on Sunday, November 1, 2026.
How do I convert Shanghai time to San Antonio time?
Subtract 13 hours from any time in Shanghai to get the time in San Antonio. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.
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