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Convert India Time to Mountain Time

IST · UTC+5:30 → MST · UTC−6

IST is 11 hours 30 minutes ahead of MST

Mumbai · IST

Tuesday, 8 September 2026

Denver · MDT

Tuesday, 8 September 2026

When are both sides at work?

0003060912151821
MumbaiIST · +05:30
0003060912151821
DenverMDT · -06:00
1215182100030609

No overlap in standard working hours. Closest workable window: 20:30–23:00 in Mumbai, which is 09:00–11:30 in Denver.

Working (09–18) Awake, off the clock Asleep (23–07)

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12:36 Tue 8 Sep Mumbai = 01:06 Tue 8 Sep Denver

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Hour-by-hour conversion

Mumbai (IST)Denver (MST)
00:0012:30prev. day
01:0013:30prev. day
02:0014:30prev. day
03:0015:30prev. day
04:0016:30prev. day
05:0017:30prev. day
06:0018:30prev. day
07:0019:30prev. day
08:0020:30prev. day
09:0021:30prev. day
10:0022:30prev. day
11:0023:30prev. day
12:0000:30Now
13:0001:30
14:0002:30
15:0003:30
16:0004:30
17:0005:30
18:0006:30
19:0007:30
20:0008:30
21:0009:30
22:0010:30
23:0011:30

About this conversion

IST here means India Time, represented by Mumbai (Asia/Kolkata), currently UTC+5:30. MST means Mountain Time, represented by Denver (America/Denver), currently UTC−6.

IST is used by 3 zones, including India. If you meant a different one, see every meaning of IST.

MST is used by 4 zones, including United States. See every meaning of MST.

Working hours are shown as 09:00–18:00 local, and sleeping hours as 23:00–07:00. The hour table is anchored on the current day in Mumbai; day boundaries are marked where the date differs.

Quick answers

  • 09:00 IST is 21:30 MST
  • 12:00 IST is 00:30 MST
  • 15:00 IST is 03:30 MST
  • 18:00 IST is 06:30 MST

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