GAMT to IST Time Converter

Convert Gambier Time (GAMT) to India Standard Time (IST). Both time zones are shown live below; current offset between them is 14h 30m ahead.

Rikitea · Gambier Time
23:49:33
Saturday, May 16, 2026
GMT-9 · UTC-09:00
Mumbai · India Standard Time
14:19:33
Sunday, May 17, 2026
GMT+5:30 · UTC+05:30

Convert a specific time

From: GAMT (Rikitea)
To: IST (Mumbai)
--:--

Daylight Saving status right now

GAMT (Gambier Time)
Observes DST
No
IST (India Standard Time)
Observes DST
No

When can GAMT and IST meet?

00
01
02
03
04
05
06
07
08
09
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13
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GAMT
IST
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Rikitea (GAMT). Each row shows the local working-hours state in that zone for the same moment in time.
No overlap during strict 9-5 working hours; some flexibility needed.
If both sides are willing to extend to 8am-7pm, the available window is 18:00–18:00 GAMT (08:30–08:30 IST).

Hour-by-hour GAMT to IST conversion table

GAMT time (Rikitea)IST time (Mumbai)Status
00:00 Sat14:30 SatIST working
01:00 Sat15:30 SatIST working
02:00 Sat16:30 SatIST working
03:00 Sat17:30 SatOff-hours both sides
04:00 Sat18:30 SatOff-hours both sides
05:00 Sat19:30 SatOff-hours both sides
06:00 Sat20:30 SatOff-hours both sides
07:00 Sat21:30 SatOff-hours both sides
08:00 Sat22:30 SatOff-hours both sides
09:00 Sat23:30 SatGAMT working
10:00 Sat00:30 SunGAMT working
11:00 Sat01:30 SunGAMT working
12:00 Sat02:30 SunGAMT working
13:00 Sat03:30 SunGAMT working
14:00 Sat04:30 SunGAMT working
15:00 Sat05:30 SunGAMT working
16:00 Sat06:30 SunGAMT working
17:00 Sat07:30 SunOff-hours both sides
18:00 Sat08:30 SunOff-hours both sides
19:00 Sat09:30 SunIST working
20:00 Sat10:30 SunIST working
21:00 Sat11:30 SunIST working
22:00 Sat12:30 SunIST working
23:00 Sat13:30 SunIST working

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

Gambier Time (GAMT)
IANA identifier
Pacific/Gambier
Current UTC offset
UTC-09:00
Current abbreviation
GMT-9
Major cities in this zone
Rikitea
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 Rikitea and Mumbai

Mumbai
Sunrise
06:04
Sunset
19:07
Solar noon
12:36
Daylight
13h 3m

Related converters

IST to GAMT (reverse)GAMT to ESTGAMT to PSTGAMT to GMTGAMT to UTCGAMT to CETEST to ISTPST to ISTGMT to ISTUTC to ISTCET to IST
Looking for local time? See time in Rikitea or time in Mumbai.

Frequently asked questions

What is the time difference between GAMT and IST right now?+
IST (India Standard Time) is currently 14h 30m ahead GAMT (Gambier Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does GAMT or IST observe daylight saving time?+
GAMT: does not observe daylight saving time. IST: does not observe daylight saving time.
When is the best time to schedule a meeting between GAMT and IST?+
Standard 9-5 hours do not overlap. Extending to 8am-7pm gives a window of 18:00–18:00 GAMT (08:30–08:30 IST).
What time is it in Mumbai when it is 12:00 noon in Rikitea?+
When it is 12:00 Sat in Rikitea (GAMT), it is 02:30 Sun in Mumbai (IST).
Which IANA time zone identifiers are used for GAMT and IST?+
GAMT maps to "Pacific/Gambier" 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 Rikitea ahead of or behind Mumbai?+
Whether Rikitea (GAMT) is ahead of or behind Mumbai (IST) depends on the current UTC offsets. Right now IST is 14h 30m ahead GAMT. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for GAMT and IST?+
GAMT is UTC-09:00 (GMT-9) 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 GAMT and IST?+
Not during a strict 9am-5pm window. If both sides flex to 8am-7pm, the available meeting window between GAMT and IST is 18:00–18:00 GAMT.