What's the current time difference between CST and MST?

Right now, MST (MST · Mountain Time) is −1h relative to CST (CST · Central Time). The number is live and reflects the current daylight-saving status of both zones.

Does this converter account for daylight saving time?

Yes. The math is done against IANA's tz database via Intl.DateTimeFormat, so DST shifts in either zone show up immediately at the transition. Around DST boundaries the conversion can move by an hour from one week to the next — this page always reflects the current rule.

Why does the TO column sometimes show "+1d" or "−1d"?

When the CST hour lands on a different calendar day in MST, we flag it so you don't accidentally schedule a meeting on the wrong date. CST 11 PM is often the next day in eastern-hemisphere zones, for example.

How do I schedule a meeting that works for both zones?

Look at the row highlighted lume green — that's the longest contiguous block where both CST and MST are in standard working hours (9 AM–5 PM local). Open the planner from the link above to lock a specific time and share a DST-stable link with the other party.

CST to MST

CST · Central Time ↔ MST · Mountain Time. Right now, MST is −1h relative to CST. DST is honored live.

From

CST

—

MST

—

00:00CST hour of day23:30

Live offset

−1h

CST (May 23) ↔ MST (May 22)

If CST or MST just shifted for daylight saving, that's already reflected.

Best meeting overlap

10:00 AM – 4:00 PM

CST time. Equivalent MST: 9:00 AM – 3:00 PM

Working hours = 9 AM – 5 PM in each zone.

Hour-by-hour

CST → MST, every hour

CST · May 23MST · May 22

12:00 AM11:00 PM
1:00 AM+1d12:00 AM
2:00 AM+1d1:00 AM
3:00 AM+1d2:00 AM
4:00 AM+1d3:00 AM
5:00 AM+1d4:00 AM
6:00 AM+1d5:00 AM
7:00 AM+1d6:00 AM
8:00 AM+1d7:00 AM
9:00 AM+1d8:00 AM
10:00 AM+1d9:00 AM
11:00 AM+1d10:00 AM
12:00 PM+1d11:00 AM
1:00 PM+1d12:00 PM
2:00 PM+1d1:00 PM
3:00 PM+1d2:00 PM
4:00 PM+1d3:00 PM
5:00 PM+1d4:00 PM
6:00 PM+1d5:00 PM
7:00 PM+1d6:00 PM
8:00 PM+1d7:00 PM
9:00 PM+1d8:00 PM
10:00 PM+1d9:00 PM
11:00 PM+1d10:00 PM

Both zones in working hours±1d = the TO side lands on a different calendar day

FAQ

CST ↔ MST, questions answered

What's the current time difference between CST and MST?: Right now, MST (MST · Mountain Time) is −1h relative to CST (CST · Central Time). The number is live and reflects the current daylight-saving status of both zones.
Does this converter account for daylight saving time?: Yes. The math is done against IANA's tz database via Intl.DateTimeFormat, so DST shifts in either zone show up immediately at the transition. Around DST boundaries the conversion can move by an hour from one week to the next — this page always reflects the current rule.
Why does the TO column sometimes show "+1d" or "−1d"?: When the CST hour lands on a different calendar day in MST, we flag it so you don't accidentally schedule a meeting on the wrong date. CST 11 PM is often the next day in eastern-hemisphere zones, for example.
How do I schedule a meeting that works for both zones?: Look at the row highlighted lume green — that's the longest contiguous block where both CST and MST are in standard working hours (9 AM–5 PM local). Open the planner from the link above to lock a specific time and share a DST-stable link with the other party.

Reverse — MST to CST Open in planner