CST Asia to IST Converter
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Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
8:00 pm20:00 CST (UTC+8), Oct 20, 2026 = 5:30 pm17:30 IST (UTC+5:30), Oct 20, 2026
CST is 2 hours and 30 minutes ahead of IST.
CST and IST examples
These examples always use CST (UTC+8) and IST (UTC+5:30). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
CST is 2 hours and 30 minutes ahead of IST.
How the time difference changes
CST Asia is 2 hours and 30 minutes ahead of IST year-round.
Working hours of 9:00 am to 6:00 pm in CST Asia correspond to 6:30 am to 3:30 pm in IST.Working hours of 09:00 to 18:00 in CST Asia correspond to 06:30 to 15:30 in IST.
Compare CST time with IST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
China Standard Time is 2 hours and 30 minutes ahead of India Standard Time.
8:00 pm20:00 in CST is 5:30 pm17:30 in IST
CST to IST call time
Best time for a conference call or a meeting is between 11:30am-6pm11:30-18:00 in CST which corresponds to 9am-3:30pm09:00-15:30 in IST
8:00 pm20:00 China Standard Time (CST). Offset UTC +8:00 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
8:00 pm20:00 CST / 5:30 pm17:30 IST
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| CST | IST |
|---|---|
| 9:30pm previous day | |
| 10:30pm previous day | |
| 11:30pm previous day | |
| 12:30am | |
| 1:30am | |
| 2:30am | |
| 3:30am | |
| 4:30am | |
| 5:30am | |
| 6:30am | |
| 7:30am | |
| 8:30am | |
| 9:30am | |
| 10:30am | |
| 11:30am | |
| 12:30pm | |
| 1:30pm | |
| 2:30pm | |
| 3:30pm | |
| 4:30pm | |
| 5:30pm | |
| 6:30pm | |
| 7:30pm | |
| 8:30pm | |
| 21:30 previous day | |
| 22:30 previous day | |
| 23:30 previous day | |
| 00:30 | |
| 01:30 | |
| 02:30 | |
| 03:30 | |
| 04:30 | |
| 05:30 | |
| 06:30 | |
| 07:30 | |
| 08:30 | |
| 09:30 | |
| 10:30 | |
| 11:30 | |
| 12:30 | |
| 13:30 | |
| 14:30 | |
| 15:30 | |
| 16:30 | |
| 17:30 | |
| 18:30 | |
| 19:30 | |
| 20:30 |
China Standard Time
Offset: CST is 8 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: China, Macao, Taiwan
Principal Cities: The largest city in the CST time zone is Shanghai in China, with about 24.875 million people. Other major cities in this time zone include Beijing, Shenzhen, Guangzhou, Chengdu.
Daylight Saving: Clocks in China Standard Time (CST) do not change for daylight saving time, so CST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
CST representations, usage and related time zones
- +08 - basic short
- +0800 - basic
- +08:00 - extended
- +0800 - sign character (+) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the east of the zero meridian.
- Hotel - Military abbreviation for CST
- H - short form of 'Hotel'
- Asia/Chongqing
- Asia/Chungking
- Asia/Harbin
- Asia/Macao
- Asia/Macau
- Asia/Shanghai
- Asia/Taipei
- PRC
- ROC
- Central Standard Time - UTC -6
- China Standard Time - UTC +8
- Cuba Standard Time - UTC -5
- ACT - ASEAN Common Time
- AWST - Australian Western Standard Time
- BNT - Brunei Darussalam Time
- CAST - Casey Time
- CHOT - Choibalsan Time
- CST - China Standard Time
- H - Hotel Time Zone
- HKT - Hong Kong Time
- HOVST - Hovd Summer Time
- IRKT - Irkutsk Time
- KRAST - Krasnoyarsk Summer Time
- MYT - Malaysia Time
- PHT - Philippine Time
- SGT - Singapore Time
- ULAT - Ulaanbaatar Time
- WITA - Central Indonesian Time
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT).
Countries using this time zone: India
Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bengaluru, Hyderabad, Ahmedabad.
Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
Current time in India: India time now
IST representations, usage and related time zones
- +0530 - basic
- +05:30 - extended
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates an offset of five hours and thirty minutes to the east of the zero meridian.
- Asia/Calcutta
- Asia/Kolkata
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2