IST to YAPT Time Converter

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

Mumbai · India Standard Time
10:35:00
Saturday, May 23, 2026
GMT+5:30 · UTC+05:30
Colonia · Yap Time
15:05:00
Saturday, May 23, 2026
GMT+10 · UTC+10:00

Convert a specific time

From: IST (Mumbai)
To: YAPT (Colonia)
--:--

Daylight Saving status right now

IST (India Standard Time)
Observes DST
No
YAPT (Yap Time)
Observes DST
No

When can IST and YAPT 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
IST
YAPT
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Mumbai (IST). Each row shows the local working-hours state in that zone for the same moment in time.
4 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 09:00–12:00 IST (13:30–16:30 YAPT).

Hour-by-hour IST to YAPT conversion table

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

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
Yap Time (YAPT)
IANA identifier
Pacific/Yap
Current UTC offset
UTC+10:00
Current abbreviation
GMT+10
Major cities in this zone
Colonia

Sun today in Mumbai and Colonia

Mumbai
Sunrise
06:03
Sunset
19:10
Solar noon
12:36
Daylight
13h 7m

Related converters

YAPT to IST (reverse)IST to ESTIST to PSTIST to GMTIST to UTCIST to CETEST to YAPTPST to YAPTGMT to YAPTUTC to YAPTCET to YAPT
Looking for local time? See time in Mumbai or time in Colonia.

Frequently asked questions

What is the time difference between IST and YAPT right now?+
YAPT (Yap Time) is currently 4h 30m ahead IST (India Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does IST or YAPT observe daylight saving time?+
IST: does not observe daylight saving time. YAPT: does not observe daylight saving time.
When is the best time to schedule a meeting between IST and YAPT?+
The strongest overlap is 09:00–12:00 IST (13:30–16:30 YAPT), giving 4 hours when both sides are within standard 9am-5pm working hours.
What time is it in Colonia when it is 12:00 noon in Mumbai?+
When it is 12:00 Sat in Mumbai (IST), it is 16:30 Sat in Colonia (YAPT).
Which IANA time zone identifiers are used for IST and YAPT?+
IST maps to "Asia/Kolkata" in the IANA database. YAPT maps to "Pacific/Yap". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Mumbai ahead of or behind Colonia?+
Whether Mumbai (IST) is ahead of or behind Colonia (YAPT) depends on the current UTC offsets. Right now YAPT is 4h 30m ahead IST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for IST and YAPT?+
IST is UTC+05:30 (GMT+5:30) and YAPT is UTC+10:00 (GMT+10). 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 IST and YAPT?+
Yes. There are 4 hours of overlap during standard 9am-5pm working hours, with the strongest window at 09:00–12:00 IST.