GMT to MT time zone converter

GMT (UTC+00:00)
Greenwich Mean Time
12:12:00
Oct 19
  • 12
    AM
  • 1
    AM
  • 2
    AM
  • 3
    AM
  • 4
    AM
  • 5
    AM
  • 6
    AM
  • 7
    AM
  • 8
    AM
  • 9
    AM
  • 10
    AM
  • 11
    AM
  • 12
    PM
  • 1
    PM
  • 2
    PM
  • 3
    PM
  • 4
    PM
  • 5
    PM
  • 6
    PM
  • 7
    PM
  • 8
    PM
  • 9
    PM
  • 10
    PM
  • 11
    PM
MT (UTC-06:00)
Mountain Time
06:12:00
Oct 19
  • 6
    PM
  • 7
    PM
  • 8
    PM
  • 9
    PM
  • 10
    PM
  • 11
    PM
  • 12
    AM
  • 1
    AM
  • 2
    AM
  • 3
    AM
  • 4
    AM
  • 5
    AM
  • 6
    AM
  • 7
    AM
  • 8
    AM
  • 9
    AM
  • 10
    AM
  • 11
    AM
  • 12
    PM
  • 1
    PM
  • 2
    PM
  • 3
    PM
  • 4
    PM
  • 5
    PM

This simple GMT to MT time zone converter allows you to quickly and visually understand the time difference between GMT (GMT) and MT (MT).

2026-10-19: 12:12 PM GMT

6:12 AM MDT

GMT: UTC+00:00 · MT: UTC-06:00

Just hover over the colored hour tiles, and you’ll instantly see the corresponding time in both zones. The time difference between GMT and MT is 6 hours 0 minutes, with GMT being ahead. For example, if it is 12:12 PM GMT, the equivalent time in MT will be 6:12 AM MDT.

GMT to MT hour-by-hour

2026-10-19 · GMT
Greenwich Mean TimeMountain Time
00:00 GMT18:00 (-1) MDT
00:30 GMT18:30 (-1) MDT
01:00 GMT19:00 (-1) MDT
01:30 GMT19:30 (-1) MDT
02:00 GMT20:00 (-1) MDT
02:30 GMT20:30 (-1) MDT
03:00 GMT21:00 (-1) MDT
03:30 GMT21:30 (-1) MDT
04:00 GMT22:00 (-1) MDT
04:30 GMT22:30 (-1) MDT
05:00 GMT23:00 (-1) MDT
05:30 GMT23:30 (-1) MDT
06:00 GMT00:00 MDT
06:30 GMT00:30 MDT
07:00 GMT01:00 MDT
07:30 GMT01:30 MDT
08:00 GMT02:00 MDT
08:30 GMT02:30 MDT
09:00 GMT03:00 MDT
09:30 GMT03:30 MDT
10:00 GMT04:00 MDT
10:30 GMT04:30 MDT
11:00 GMT05:00 MDT
11:30 GMT05:30 MDT
12:00 GMT06:00 MDT
12:30 GMT06:30 MDT
13:00 GMT07:00 MDT
13:30 GMT07:30 MDT
14:00 GMT08:00 MDT
14:30 GMT08:30 MDT
15:00 GMT09:00 MDT
15:30 GMT09:30 MDT
16:00 GMT10:00 MDT
16:30 GMT10:30 MDT
17:00 GMT11:00 MDT
17:30 GMT11:30 MDT
18:00 GMT12:00 MDT
18:30 GMT12:30 MDT
19:00 GMT13:00 MDT
19:30 GMT13:30 MDT
20:00 GMT14:00 MDT
20:30 GMT14:30 MDT
21:00 GMT15:00 MDT
21:30 GMT15:30 MDT
22:00 GMT16:00 MDT
22:30 GMT16:30 MDT
23:00 GMT17:00 MDT
23:30 GMT17:30 MDT

Greenwich Mean Time

UTC+00:00

Fixed UTC offset. For seasonal local time, select a city or ET, CT, MT, PT.

GMT · UTC+00:00

Mountain Time

America/Denver

Uses IANA time zone rules for the selected date.

MDT · UTC-06:00

Frequently Asked Questions

2026-10-19 · GMT ahead of MT: 6 hours 0 minutes. GMT: UTC+00:00; MT: UTC-06:00.

2026-10-19 · 12:12 GMT → 06:12 MDT.

Weekday overlap (Mon–Fri, 09:00–17:00 in both places): GMT: 15:00 GMT – 17:00 GMT ↔ MT: 09:00 MDT – 11:00 MDT

GMT ahead of MT: 6 hours 0 minutes

Date → Select range → .ics. 2026-10-19 · 12:12 GMT → 06:12 MDT.

GMT: Fixed UTC offset. For seasonal local time, select a city or ET, CT, MT, PT. MT: Uses IANA time zone rules for the selected date. Next clock change: 2026-11-01 01:00 MST