CST to MST Time Converter
Mountain Standard Time (MST) is currently 1 hour behind Central Standard Time (CST). CST is UTC-6 and MST is UTC-7. 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 10:00 AM and 5:00 PM in CST, which is 9:00 AM to 4:00 PM in MST.
Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.
Hour by Hour: CST to MST
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?
CST and MST are fixed offsets, so the difference between them never changes.
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.
MST is UTC-7. Most of the Mountain region switches to MDT (UTC-6) in summer, but Arizona stays on MST year round.
Frequently Asked Questions
How many hours behind is MST compared to CST?
MST is currently 1 hour behind CST. CST and MST are fixed offsets, so the difference between them never changes.
What time is 9:00 AM in CST in MST?
9:00 AM in CST is 8:00 AM in MST.
What is the best time for a call between CST and MST?
Both sides are inside 9:00 AM to 5:00 PM office hours between 10:00 AM and 5:00 PM in CST, which is 9:00 AM to 4:00 PM in MST.