MST to CST Time Converter
Central Standard Time (CST) is currently 1 hour ahead of Mountain Standard Time (MST). MST is UTC-7 and CST is UTC-6. The table below converts every hour of the day between the two, and the call planner shows where working hours line up.
Best Time for a Call
Both sides are inside 9:00 AM to 5:00 PM office hours between 9:00 AM and 4:00 PM in MST, which is 10:00 AM to 5:00 PM in CST.
Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.
Hour by Hour: MST to CST
Rows marked office hours fall between 9:00 AM and 5:00 PM in both places. For a specific date, use the interactive converter.
Does the Difference Change During the Year?
MST and CST are fixed offsets, so the difference between them never changes.
MST is UTC-7. Most of the Mountain region switches to MDT (UTC-6) in summer, but Arizona stays on MST year round.
This page covers North American Central Standard Time, UTC-6. The region switches to CDT (UTC-5) in summer. CST can also refer to China Standard Time, which is UTC+8.
Frequently Asked Questions
How many hours ahead is CST compared to MST?
CST is currently 1 hour ahead of MST. MST and CST are fixed offsets, so the difference between them never changes.
What time is 9:00 AM in MST in CST?
9:00 AM in MST is 10:00 AM in CST.
What is the best time for a call between MST and CST?
Both sides are inside 9:00 AM to 5:00 PM office hours between 9:00 AM and 4:00 PM in MST, which is 10:00 AM to 5:00 PM in CST.