Time zone comparison
Mountain Standard Time (MST, UTC-06:00) vs Coordinated Universal Time (UTC, UTC+00:00). Right now MST is 6h behind UTC. MST is used in Denver while UTC covers Global standard. Use the 24-hour grid below to find a meeting slot both sides will tolerate.
Heads up: these zones diverge on daylight saving.
MST observes DST while UTC does not, so the gap shifts by an hour twice a year. In January the difference is 7h, in July it is 6h. If you are scheduling across the spring or autumn transitions, double-check the date.
Hours where both sides sit inside 9-to-5 business hours.
Both in business hours
09:00 MST
15:00 UTC
Both in business hours
10:00 MST
16:00 UTC
Each row is one hour. Green rows are when both sides are inside 9 AM to 5 PM.
| Hour | MST (Mountain Standard Time) | UTC (Coordinated Universal Time) | Overlap |
|---|---|---|---|
| 12 AM | 00:00Thu | 06:00Thu | No overlap |
| 1 AM | 01:00Thu | 07:00Thu | No overlap |
| 2 AM | 02:00Thu | 08:00Thu | No overlap |
| 3 AM | 03:00Thu | 09:00Thu | UTC only |
| 4 AM | 04:00Thu | 10:00Thu | UTC only |
| 5 AM | 05:00Thu | 11:00Thu | UTC only |
| 6 AM | 06:00Thu | 12:00Thu | UTC only |
| 7 AM | 07:00Thu | 13:00Thu | UTC only |
| 8 AM | 08:00Thu | 14:00Thu | UTC only |
| 9 AM | 09:00Thu | 15:00Thu | Business overlap |
| 10 AM | 10:00Thu | 16:00Thu | Business overlap |
| 11 AM | 11:00Thu | 17:00Thu | MST only |
| 12 PM | 12:00Thu | 18:00Thu | MST only |
| 1 PM | 13:00Thu | 19:00Thu | MST only |
| 2 PM | 14:00Thu | 20:00Thu | MST only |
| 3 PM | 15:00Thu | 21:00Thu | MST only |
| 4 PM | 16:00Thu | 22:00Thu | MST only |
| 5 PM | 17:00Thu | 23:00Thu | No overlap |
| 6 PM | 18:00Thu | 00:00Fri | No overlap |
| 7 PM | 19:00Thu | 01:00Fri | No overlap |
| 8 PM | 20:00Thu | 02:00Fri | No overlap |
| 9 PM | 21:00Thu | 03:00Fri | No overlap |
| 10 PM | 22:00Thu | 04:00Fri | No overlap |
| 11 PM | 23:00Thu | 05:00Fri | No overlap |
Mountain Standard Time (MST) sits at UTC-06:00 today, while Coordinated Universal Time (UTC) is at UTC+00:00. The current gap is 6 hours, with MST behind UTC. In practical terms, if your morning starts at 9 AM in Denver, your counterpart in Global standard is seeing 15:00 on their own watch at that exact moment.
MST is the working clock for Denver. UTC covers Global standard. If your team is split between these two regions, the table above is the quickest way to spot the daily overlap window without doing the offset arithmetic in your head.
Daylight saving matters here. Mountain Standard Time shifts forward an hour on the second Sunday of March (US) or the last Sunday of March (Europe) and back on the first Sunday of November or last Sunday of October. Coordinated Universal Time stays on a fixed offset year-round. The IANA tzdata baked into this page handles every transition automatically, so the table reflects the correct wall-clock times for today's date. For dates further out, use the converter linked above and pick the target date explicitly.
Common scheduling traps are easy to avoid here. Pick a wall-clock time on one side, read the matching wall-clock on the other from the table, and write both into the calendar invite, never just the difference. If the meeting falls in the week of a DST changeover and one of these zones shifts, the absolute clock will drift by an hour from what the recipient expects. The table is computed for today's date, so for a future meeting open the converter linked above and pick the exact date.
One last note for asynchronous teams: business-hour overlap is the wrong metric for handoff workflows. If you operate on a follow-the-sun model, you actually want zero overlap, with one team logging off as the other starts. MST and UTC differ by 6 hours, which gives you partial coverage. Add a zone in between if you want full 24-hour rotation.
GMTvsMST
Greenwich Mean Time · Mountain Standard Time
Compare →ESTvsMST
Eastern Standard Time · Mountain Standard Time
Compare →EDTDSTvsMST
Eastern Daylight Time · Mountain Standard Time
Compare →CSTvsMST
Central Standard Time · Mountain Standard Time
Compare →MSTvsPST
Mountain Standard Time · Pacific Standard Time
Compare →ISTvsMST
India Standard Time · Mountain Standard Time
Compare →JSTvsMST
Japan Standard Time · Mountain Standard Time
Compare →CETvsMST
Central European Time · Mountain Standard Time
Compare →