CT to MDT Time Converter
MDT is 1 hour behind CT. The US Central states are currently on CDT (UTC-5:00), and MDT is UTC-6:00.
Best Time to Call Between CT and MDT
Both zones are inside normal business hours between 10:00 AM and 5:00 PM CT — that's 9:00 AM to 4:00 PM MDT. That's a 7-hour window.
both at work CT only MDT only neither — hours along the strip are CT.
Common Times Converted
CT on the left, MDT on the right.
CT to MDT: Full 24-Hour Conversion Table
Shaded rows are working hours; the darker shade marks the hours when both zones are at work.
| CT | MDT | 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 | CT 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 | MDT 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 CT and MDT Actually Are
CT — Central Time
Chicago, Houston, Dallas, Mexico City, Winnipeg. Standing at UTC-6:00 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.
Central Time is the widest US zone by land area, stretching from the Gulf coast to the Canadian border, and it also covers Mexico City.
MDT — Mountain Daylight Time
Denver, Salt Lake City, Calgary, Edmonton. Standing at UTC-6:00 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.
Because Arizona does not follow it, MDT is the half of the year when Phoenix and Denver read the same clock despite being in different zones.
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 CT
Cities on MDT
Frequently Asked Questions
What is the time difference between CT and MDT?
MDT is 1 hour behind CT. That is the live figure. Taken strictly as written, the gap between CT and MDT is — the two differ because at least one of these regions is currently on daylight saving.
What is 9:00 AM CT in MDT?
9:00 AM CT is 8:00 AM MDT.
What are the best hours to schedule a call between CT and MDT?
Between 10:00 AM and 5:00 PM CT, which is 9:00 AM to 4:00 PM MDT. Both sides are inside normal business hours through that window.
Does the difference between CT and MDT 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.