IST to CAT Time Converter

Convert India Standard Time (IST) to Central Africa Time (CAT). Both time zones are shown live below; current offset between them is 3h 30m behind.

Mumbai · India Standard Time
02:34:55
Thursday, May 14, 2026
GMT+5:30 · UTC+05:30
Harare · Central Africa Time
23:04:55
Wednesday, May 13, 2026
GMT+2 · UTC+02:00

Convert a specific time

From: IST (Mumbai)
To: CAT (Harare)
--:--

Daylight Saving status right now

IST (India Standard Time)
Observes DST
No
CAT (Central Africa Time)
Observes DST
No

When can IST and CAT meet?

00
01
02
03
04
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08
09
10
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13
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IST
CAT
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: 13:00–16:00 IST (09:30–12:30 CAT).

Hour-by-hour IST to CAT conversion table

IST time (Mumbai)CAT time (Harare)Status
00:00 Thu20:30 WedOff-hours both sides
01:00 Thu21:30 WedOff-hours both sides
02:00 Thu22:30 WedOff-hours both sides
03:00 Thu23:30 WedOff-hours both sides
04:00 Thu00:30 ThuOff-hours both sides
05:00 Thu01:30 ThuOff-hours both sides
06:00 Thu02:30 ThuOff-hours both sides
07:00 Thu03:30 ThuOff-hours both sides
08:00 Thu04:30 ThuOff-hours both sides
09:00 Thu05:30 ThuIST working
10:00 Thu06:30 ThuIST working
11:00 Thu07:30 ThuIST working
12:00 Thu08:30 ThuIST working
13:00 Thu09:30 ThuBoth at work
14:00 Thu10:30 ThuBoth at work
15:00 Thu11:30 ThuBoth at work
16:00 Thu12:30 ThuBoth at work
17:00 Thu13:30 ThuCAT working
18:00 Thu14:30 ThuCAT working
19:00 Thu15:30 ThuCAT working
20:00 Thu16:30 ThuCAT working
21:00 Thu17:30 ThuOff-hours both sides
22:00 Thu18:30 ThuOff-hours both sides
23:00 Thu19:30 ThuOff-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
Central Africa Time (CAT)
IANA identifier
Africa/Harare
Current UTC offset
UTC+02:00
Current abbreviation
GMT+2
Major cities in this zone
Harare

Sun today in Mumbai and Harare

Mumbai
Sunrise
06:05
Sunset
19:06
Solar noon
12:36
Daylight
13h 0m

Related converters

CAT to IST (reverse)IST to ESTIST to PSTIST to GMTIST to UTCIST to CETEST to CATPST to CATGMT to CATUTC to CATCET to CAT
Looking for local time? See time in Mumbai or time in Harare.

Frequently asked questions

What is the time difference between IST and CAT right now?+
CAT (Central Africa Time) is currently 3h 30m behind 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 CAT observe daylight saving time?+
IST: does not observe daylight saving time. CAT: does not observe daylight saving time.
When is the best time to schedule a meeting between IST and CAT?+
The strongest overlap is 13:00–16:00 IST (09:30–12:30 CAT), giving 4 hours when both sides are within standard 9am-5pm working hours.
What time is it in Harare when it is 12:00 noon in Mumbai?+
When it is 12:00 Thu in Mumbai (IST), it is 08:30 Thu in Harare (CAT).
Which IANA time zone identifiers are used for IST and CAT?+
IST maps to "Asia/Kolkata" in the IANA database. CAT maps to "Africa/Harare". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Mumbai ahead of or behind Harare?+
Whether Mumbai (IST) is ahead of or behind Harare (CAT) depends on the current UTC offsets. Right now CAT is 3h 30m behind IST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for IST and CAT?+
IST is UTC+05:30 (GMT+5:30) and CAT is UTC+02:00 (GMT+2). 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 CAT?+
Yes. There are 4 hours of overlap during standard 9am-5pm working hours, with the strongest window at 13:00–16:00 IST.