CDT to MT Time Converter
MT is 1 hour behind CDT. CDT is UTC-5:00, and The US Mountain states are currently on MDT (UTC-6:00).
Best Time to Call Between CDT and MT
Both zones are inside normal business hours between 10:00 AM and 5:00 PM CDT — that's 9:00 AM to 4:00 PM MT. That's a 7-hour window.
both at work CDT only MT only neither — hours along the strip are CDT.
Common Times Converted
CDT on the left, MT on the right.
CDT to MT: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| CDT | MT | Working hours |
|---|---|---|
| 12:00 AM | 11:00 PM prev day | — |
| 1:00 AM | 12:00 AM | — |
| 2:00 AM | 1:00 AM | — |
| 3:00 AM | 2:00 AM | — |
| 4:00 AM | 3:00 AM | — |
| 5:00 AM | 4:00 AM | — |
| 6:00 AM | 5:00 AM | — |
| 7:00 AM | 6:00 AM | — |
| 8:00 AM | 7:00 AM | — |
| 9:00 AM | 8:00 AM | CDT only |
| 10:00 AM | 9:00 AM | Both zones |
| 11:00 AM | 10:00 AM | Both zones |
| 12:00 PM | 11:00 AM | Both zones |
| 1:00 PM | 12:00 PM | Both zones |
| 2:00 PM | 1:00 PM | Both zones |
| 3:00 PM | 2:00 PM | Both zones |
| 4:00 PM | 3:00 PM | Both zones |
| 5:00 PM | 4:00 PM | MT only |
| 6:00 PM | 5:00 PM | — |
| 7:00 PM | 6:00 PM | — |
| 8:00 PM | 7:00 PM | — |
| 9:00 PM | 8:00 PM | — |
| 10:00 PM | 9:00 PM | — |
| 11:00 PM | 10:00 PM | — |
What CDT and MT Actually Are
CDT — Central Daylight Time
Chicago, Houston, Dallas, Winnipeg. Standing at UTC-5:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to CST. Mexico abolished daylight saving in 2022, so Mexico City stays on UTC-6 all year and no longer uses CDT.
Mexico left this pattern behind in 2022, abolishing daylight saving nationwide except in a strip of cities along the US border that kept it for cross-frontier trade.
MT — Mountain Time
Denver, Salt Lake City, Calgary, Edmonton — and Phoenix, which does not change its clocks. Standing at UTC-7:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to MST.
Mountain Time contains the most conspicuous daylight saving exception in North America: Arizona, which has opted out since 1968.
What This Means in Practice
Both sides change clocks, on different dates
Both regions observe daylight saving but do not switch on the same day, so for a week or two each spring and fall the gap between them is an hour different from the rest of the year. Those short windows are where recurring invitations quietly break.
Close enough to share a working day
At only 1 hour apart, the two working days overlap almost completely. Scheduling is barely constrained by the difference.
Major Cities in Each Zone
Cities on CDT
Cities on MT
Frequently Asked Questions
What is the time difference between CDT and MT?
MT is 1 hour behind CDT. That is the live figure. Taken strictly as written, the gap between CDT and MT is 2 hours — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM CDT in MT?
9:00 AM CDT is 8:00 AM MT.
What are the best hours to schedule a call between CDT and MT?
Between 10:00 AM and 5:00 PM CDT, which is 9:00 AM to 4:00 PM MT. Both sides are inside normal business hours through that window.
Does the difference between CDT and MT change during the year?
Yes. Both regions observe daylight saving, and they do not switch on the same dates, so the gap shifts by an hour at least twice a year. The next clock change is on Sunday, November 1, 2026.
Does CDT always mean Central Daylight Time?
Mexico abolished daylight saving in 2022, so Mexico City stays on UTC-6 all year and no longer uses CDT.