Shanghai KolkataTime Converter
Shanghai (GMT+8, UTC+8) is currently 2 hours 30 minutes ahead of Kolkata (IST, UTC+5:30). Compare live clocks, convert any hour, and find times to meet.
Quick answer
When it's in Shanghai, it's the same day in Kolkata.
Shanghai (GMT+8) runs 2 hours 30 minutes ahead of Kolkata (IST). Both sides keep standard office hours with a real 9–6 overlap — the highlighted window below works for everyone.
- Time difference
- −2h 30m
- Shanghai
- UTC+8
- Kolkata
- UTC+5:30
- Best call window
- 12:00 PM GMT+8
Shanghai to Kolkata conversion table
The next 12 hours in Shanghai and the matching local time in Kolkata. The current hour is highlighted; drag the converter's slider and the table follows.
| Shanghai · GMT+8 | Kolkata · IST |
|---|---|
| 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 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Best time to meet between Shanghai & Kolkata
Working hours are 9am–6pm in each city. The bright band is where they overlap — when both sides are at their desks.
This time difference never changes
Neither side observes daylight saving against the other, so the gap stays constant all year. Shanghai does not observe daylight saving time. Kolkata does not observe daylight saving time. 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 Kolkata
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 Kolkata?", 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 → Kolkata",
"url": "https://worldclock.pro/en/convert/shanghai-to-kolkata",
"from": {
"name": "Shanghai",
"type": "city",
"abbreviation": "GMT+8",
"daylightAbbreviation": null,
"iana": "Asia/Shanghai",
"standardUtcOffset": "+08:00",
"daylightUtcOffset": null,
"referenceCity": "Shanghai"
},
"to": {
"name": "Kolkata",
"type": "city",
"abbreviation": "IST",
"daylightAbbreviation": null,
"iana": "Asia/Kolkata",
"standardUtcOffset": "+05:30",
"daylightUtcOffset": null,
"referenceCity": "Kolkata"
},
"currentDifferenceMinutes": -150,
"possibleDifferencesMinutes": [
-150
],
"note": "The difference is constant year-round."
}
Frequently asked questions
What is the time difference between Shanghai and Kolkata?
Shanghai is currently 2 hours 30 minutes ahead of Kolkata. Shanghai is on GMT+8 (UTC+8) and Kolkata is on IST (UTC+5:30). The difference can change when either side starts or ends daylight saving time.
Is Kolkata ahead of or behind Shanghai?
Kolkata is currently 2 hours 30 minutes behind Shanghai.
When it is 9:00 AM in Shanghai, what time is it in Kolkata?
When it is 9:00 AM on a Monday in Shanghai, it is 6:30 AM in Kolkata.
Do Shanghai and Kolkata observe daylight saving time?
Shanghai does not observe daylight saving time. Kolkata does not observe daylight saving time.
How do I convert Shanghai time to Kolkata time?
Subtract 2 hours 30 minutes from any time in Shanghai to get the time in Kolkata. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.
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