WIB to MST converter

Western Indonesia Time (Jakarta) to Mountain Time (Denver, Salt Lake City, Calgary).

WIB7:07 AMSat 31 Oct 2026

→

MST6:07 PMFri 30 Oct 2026

MST is 13 h behind WIB.

Pick a time in WIB

⇄ MST to WIB

9:00 AM WIB = 8:00 PM MST previous day

Best time to meet

No hour falls inside 9 AM to 5 PM in both places, so one side always meets outside office hours.

WIB to MST time table

For 31 Oct 2026. Green rows: both sides between 9 AM and 5 PM.

WIB	MST
12:00 AM WIB	11:00 AM MST previous day
1:00 AM WIB	12:00 PM MST previous day
2:00 AM WIB	1:00 PM MST previous day
3:00 AM WIB	2:00 PM MST previous day
4:00 AM WIB	3:00 PM MST previous day
5:00 AM WIB	4:00 PM MST previous day
6:00 AM WIB	5:00 PM MST previous day
7:00 AM WIB	6:00 PM MST previous day
8:00 AM WIB	7:00 PM MST previous day
9:00 AM WIB	8:00 PM MST previous day
10:00 AM WIB	9:00 PM MST previous day
11:00 AM WIB	10:00 PM MST previous day
12:00 PM WIB	11:00 PM MST previous day
1:00 PM WIB	12:00 AM MST
2:00 PM WIB	1:00 AM MST
3:00 PM WIB	2:00 AM MST
4:00 PM WIB	3:00 AM MST
5:00 PM WIB	4:00 AM MST
6:00 PM WIB	5:00 AM MST
7:00 PM WIB	6:00 AM MST
8:00 PM WIB	7:00 AM MST
9:00 PM WIB	8:00 AM MST
10:00 PM WIB	9:00 AM MST
11:00 PM WIB	10:00 AM MST

Quick answers

9:00 AM WIB = 8:00 PM MST (previous day)
12:00 PM WIB = 11:00 PM MST (previous day)
3:00 PM WIB = 2:00 AM MST
5:00 PM WIB = 4:00 AM MST
9:00 AM MST = 10:00 PM WIB
12:00 PM MST = 1:00 AM WIB (next day)
5:00 PM MST = 6:00 AM WIB (next day)

Does the gap change during the year?

Yes, because of daylight saving. Until 1 Nov 2026: MST is 13 h behind WIB. From 1 Nov 2026 to 14 Mar 2027: MST is 14 h behind WIB. From 14 Mar 2027 to 7 Nov 2027: MST is 13 h behind WIB.

WIB does not change its clocks. MST next changes its clocks on 1 Nov 2026 (back 1 h, to UTC−7), then on 14 Mar 2027 (forward 1 h, to UTC−6).

About WIB and MST

WIB here means Western Indonesia Time, the clock in Jakarta. Right now it is UTC+7. It has no daylight saving.

MST here means Mountain Time, the clock in Denver, Salt Lake City, Calgary. Right now it is UTC−6. Strictly, MST is the winter name; in summer these places use MDT. This page follows their real clock all year.

Every city on your wrist

Meanwhile puts these times in your Mac menu bar, on your iPhone home screen and on your Apple Watch. Type “3pm Tokyo” and every city answers. Free for 3 cities. Unlock every city on every device once for $4.99, shared with your family. No subscription.

Coming soon