GST to CST/CDT time converter

CST/CDT is 9 hours behind GST. When it is 9:00 AM in GST, it is 12:00 AM in CST/CDT.

GST UTC+4

Saturday, October 17, 2026

CST/CDT CDT

Friday, October 16, 2026

GST
Gulf Standard Time
Sat, Oct 17
UTC+4
CST/CDT
Central Daylight Time
Fri, Oct 16
CDTUTC-5-9h
Finding your time zone…
Shared working hours (9:00–18:00)

GST to CST/CDT conversion table

Every hour of today in GST and the matching time in CST/CDT. Light rows are typical working hours (9:00–18:00).

GSTCST/CDT
12:00 AM3:00 PM−1 day
1:00 AM4:00 PM−1 day
2:00 AM5:00 PM−1 day
3:00 AM6:00 PM−1 day
4:00 AM7:00 PM−1 day
5:00 AM8:00 PM−1 day
6:00 AM9:00 PM−1 day
7:00 AM10:00 PM−1 day
8:00 AM11:00 PM−1 day
9:00 AM12:00 AM
10:00 AM1:00 AM
11:00 AM2:00 AM
12:00 PM3:00 AM
1:00 PM4:00 AM
2:00 PM5:00 AM
3:00 PM6:00 AM
4:00 PM7:00 AM
5:00 PM8:00 AM
6:00 PM9:00 AM
7:00 PM10:00 AM
8:00 PM11:00 AM
9:00 PM12:00 PM
10:00 PM1:00 PM
11:00 PM2:00 PM

Best time to call or meet

Working hours don't overlap fully. The closest fit is 4:00 PM – 6:00 PM in GST (7:00 AM – 9:00 AM in CST/CDT): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference changes during the year because GST and CST/CDT switch clocks on different dates:

  • Oct 17, 2026 – Nov 1, 2026: -9h
  • Nov 1, 2026 – Mar 14, 2027: -10h
  • Mar 14, 2027 – Oct 17, 2027: -9h

More conversions

CDT to GSTGST to UTCGST to GMTGST to ESTGST to CSTGST to MSTGST to PSTGST to CETGST to MSKGST to PKTGST to ISTGST to SGTGST to PHT
UTC to CDTGMT to CDTEST to CDTCST to CDTMST to CDTPST to CDTCET to CDTMSK to CDTPKT to CDTIST to CDTSGT to CDTPHT to CDT

Questions and answers

What is the time difference between GST and CST/CDT?

CST/CDT is 9 hours behind GST.

What time is it in CST/CDT when it is 9 AM in GST?

When it is 9:00 AM in GST, it is 12:00 AM in CST/CDT.

When is the best time to call CST/CDT from GST?

Working hours don't overlap fully. The closest fit is 4:00 PM – 6:00 PM in GST (7:00 AM – 9:00 AM in CST/CDT): working hours on one side, early or late on the other.

Does the time difference between GST and CST/CDT change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.