CHST to IST Time Converter

Convert Chamorro Standard Time (CHST) to India Standard Time (IST). Both time zones are shown live below; current offset between them is 4h 30m behind.

Hagåtña · Chamorro Standard Time
08:59:21
Wednesday, May 20, 2026
GMT+10 · UTC+10:00
Mumbai · India Standard Time
04:29:21
Wednesday, May 20, 2026
GMT+5:30 · UTC+05:30

Convert a specific time

From: CHST (Hagåtña)
To: IST (Mumbai)
--:--

Daylight Saving status right now

CHST (Chamorro Standard Time)
Observes DST
No
IST (India Standard Time)
Observes DST
No

When can CHST and IST meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
CHST
IST
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Hagåtña (CHST). Each row shows the local working-hours state in that zone for the same moment in time.
3 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 14:00–16:00 CHST (09:30–11:30 IST).

Hour-by-hour CHST to IST conversion table

CHST time (Hagåtña)IST time (Mumbai)Status
00:00 Wed19:30 TueOff-hours both sides
01:00 Wed20:30 TueOff-hours both sides
02:00 Wed21:30 TueOff-hours both sides
03:00 Wed22:30 TueOff-hours both sides
04:00 Wed23:30 TueOff-hours both sides
05:00 Wed00:30 WedOff-hours both sides
06:00 Wed01:30 WedOff-hours both sides
07:00 Wed02:30 WedOff-hours both sides
08:00 Wed03:30 WedOff-hours both sides
09:00 Wed04:30 WedCHST working
10:00 Wed05:30 WedCHST working
11:00 Wed06:30 WedCHST working
12:00 Wed07:30 WedCHST working
13:00 Wed08:30 WedCHST working
14:00 Wed09:30 WedBoth at work
15:00 Wed10:30 WedBoth at work
16:00 Wed11:30 WedBoth at work
17:00 Wed12:30 WedIST working
18:00 Wed13:30 WedIST working
19:00 Wed14:30 WedIST working
20:00 Wed15:30 WedIST working
21:00 Wed16:30 WedIST working
22:00 Wed17:30 WedOff-hours both sides
23:00 Wed18:30 WedOff-hours both sides

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Chamorro Standard Time (CHST)
IANA identifier
Pacific/Guam
Current UTC offset
UTC+10:00
Current abbreviation
GMT+10
Major cities in this zone
Hagåtña
India Standard Time (IST)
IANA identifier
Asia/Kolkata
Current UTC offset
UTC+05:30
Current abbreviation
GMT+5:30
Major cities in this zone
MumbaiNew DelhiBangaloreChennaiKolkata

Sun today in Hagåtña and Mumbai

Mumbai
Sunrise
06:03
Sunset
19:08
Solar noon
12:36
Daylight
13h 5m

Related converters

IST to CHST (reverse)CHST to ESTCHST to PSTCHST to GMTCHST to UTCCHST to CETEST to ISTPST to ISTGMT to ISTUTC to ISTCET to IST
Looking for local time? See time in Hagåtña or time in Mumbai.

Frequently asked questions

What is the time difference between CHST and IST right now?+
IST (India Standard Time) is currently 4h 30m behind CHST (Chamorro Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does CHST or IST observe daylight saving time?+
CHST: does not observe daylight saving time. IST: does not observe daylight saving time.
When is the best time to schedule a meeting between CHST and IST?+
The strongest overlap is 14:00–16:00 CHST (09:30–11:30 IST), giving 3 hours when both sides are within standard 9am-5pm working hours.
What time is it in Mumbai when it is 12:00 noon in Hagåtña?+
When it is 12:00 Wed in Hagåtña (CHST), it is 07:30 Wed in Mumbai (IST).
Which IANA time zone identifiers are used for CHST and IST?+
CHST maps to "Pacific/Guam" in the IANA database. IST maps to "Asia/Kolkata". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Hagåtña ahead of or behind Mumbai?+
Whether Hagåtña (CHST) is ahead of or behind Mumbai (IST) depends on the current UTC offsets. Right now IST is 4h 30m behind CHST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for CHST and IST?+
CHST is UTC+10:00 (GMT+10) and IST is UTC+05:30 (GMT+5:30). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both CHST and IST?+
Yes. There are 3 hours of overlap during standard 9am-5pm working hours, with the strongest window at 14:00–16:00 CHST.