MST to CST Time — Convert Mountain Standard Time (US) to Central Standard Time (US)

CST is currently 1 hour ahead of MST.

MST is Mountain Standard Time (UTC−7). Most of the US Mountain zone switches to MDT (UTC−6) in summer, but Arizona (except the Navajo Nation) stays on MST year-round.

On Clockjumper, CST refers to US Central Standard Time (UTC−6). The same three letters are also used for China Standard Time (UTC+8) and Cuba Standard Time (UTC−5) — check the city or UTC offset to be sure which is meant.

The MST → CST offset stays constant across the year — neither zone shifts for daylight saving in a way that changes this gap.

Is CST ahead of or behind MST right now?

CST is currently 1 hour ahead of MST.

What is the current MST to CST time difference?

Right now the gap is 1 hour — CST is 1 hour ahead of MST.

Does the MST → CST offset change during the year?

No. Neither Mountain Standard Time (US) nor Central Standard Time (US) shifts for daylight saving in a way that changes this offset — the gap is the same all year.

Does MST observe daylight saving time?

MST is itself the standard-time form. Mountain Standard Time (US) is in force at UTC-7 through the winter months; outside that window the same zone is on MDT (UTC-6).

Does CST observe daylight saving time?

CST is itself the standard-time form. Central Standard Time (US) is in force at UTC-6 through the winter months; outside that window the same zone is on CDT (UTC-5).

What time is 3 AM MST in CST?

3:00 AM MST is 4:00 AM CST.

What time is 8 AM MST in CST?

8:00 AM MST is 9:00 AM CST.

What time is 9 AM MST in CST?

9:00 AM MST is 10:00 AM CST.

What time is 10 AM MST in CST?

10:00 AM MST is 11:00 AM CST.

What time is 11 AM MST in CST?

11:00 AM MST is 12:00 PM CST.

What time is 12 PM (noon) MST in CST?

12:00 PM MST is 1:00 PM CST.

What time is 2 PM MST in CST?

2:00 PM MST is 3:00 PM CST.

What time is 3 PM MST in CST?

3:00 PM MST is 4:00 PM CST.

What time is 4 PM MST in CST?

4:00 PM MST is 5:00 PM CST.

What time is 5 PM MST in CST?

5:00 PM MST is 6:00 PM CST.

What time is 9 PM MST in CST?

9:00 PM MST is 10:00 PM CST.

What time is 10 PM MST in CST?

10:00 PM MST is 11:00 PM CST.

When is the best time to schedule a call between MST and CST?

The working-hours overlap (09:00–17:00 in both zones) runs roughly 9:00 AM – 4:00 PM MST (≈ 7 hours). The midpoint of that window — 12:30 PM MST, 1:30 PM CST — is the safest single slot to propose for a live call.

What time zone does MST refer to?

MST refers to Mountain Standard Time (US) (IANA: America/Denver).

What time zone does CST refer to?

CST refers to Central Standard Time (US) (IANA: America/Chicago).

Is MST on this page the same as other zones that share the letters "MST"?

MST is Mountain Standard Time (UTC−7). Most of the US Mountain zone switches to MDT (UTC−6) in summer, but Arizona (except the Navajo Nation) stays on MST year-round.

Is CST on this page the same as other zones that share the letters "CST"?

On Clockjumper, CST refers to US Central Standard Time (UTC−6). The same three letters are also used for China Standard Time (UTC+8) and Cuba Standard Time (UTC−5) — check the city or UTC offset to be sure which is meant.

• CST to MST
• AEST to MST
• AEST to CST
• BST to MST
• BST to CST
• CDT to MST
• CDT to CST
• CET to MST
• CET to CST
• EDT to MST
• CST to AEST
• EST to MST
• CST to BST
• GMT to MST
• CST to CDT

• About MST (Mountain Standard Time (US)) →
• About CST (Central Standard Time (US)) →
• All timezone conversion pages →
• Explore workday-overlap research →