YAPT to IST Time Converter

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

Colonia · Yap Time
15:01:55
Saturday, May 23, 2026
GMT+10 · UTC+10:00
Mumbai · India Standard Time
10:31:55
Saturday, May 23, 2026
GMT+5:30 · UTC+05:30

Convert a specific time

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

Daylight Saving status right now

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

When can YAPT 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
YAPT
IST
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Colonia (YAPT). 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 YAPT (09:30–11:30 IST).

Hour-by-hour YAPT to IST conversion table

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

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

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

Related converters

IST to YAPT (reverse)YAPT to ESTYAPT to PSTYAPT to GMTYAPT to UTCYAPT to CETEST to ISTPST to ISTGMT to ISTUTC to ISTCET to IST
Looking for local time? See time in Colonia or time in Mumbai.

Frequently asked questions

What is the time difference between YAPT and IST right now?+
IST (India Standard Time) is currently 4h 30m behind YAPT (Yap Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does YAPT or IST observe daylight saving time?+
YAPT: does not observe daylight saving time. IST: does not observe daylight saving time.
When is the best time to schedule a meeting between YAPT and IST?+
The strongest overlap is 14:00–16:00 YAPT (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 Colonia?+
When it is 12:00 Sat in Colonia (YAPT), it is 07:30 Sat in Mumbai (IST).
Which IANA time zone identifiers are used for YAPT and IST?+
YAPT maps to "Pacific/Yap" 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 Colonia ahead of or behind Mumbai?+
Whether Colonia (YAPT) is ahead of or behind Mumbai (IST) depends on the current UTC offsets. Right now IST is 4h 30m behind YAPT. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for YAPT and IST?+
YAPT 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 YAPT and IST?+
Yes. There are 3 hours of overlap during standard 9am-5pm working hours, with the strongest window at 14:00–16:00 YAPT.