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Calgary is -1h behind Houston
Quick converter
FROM
Houston
United States
UTC-05:00
TO
Calgary
Canada
UTC-06:00
Date-aware conversion
Result
Sun, Jun 21, 2026 02:52
Houston: Sunday, June 21, 2026 3:52 AM CDT to Calgary: Sunday, June 21, 2026 2:52 AM MDT.
Calgary is 1h behind Houston on this date
Every hour in Houston and the corresponding time in Calgary. Green rows indicate business hours in Calgary.
Time zones
Houston uses America/Chicago (CDT) and Calgary uses America/Edmonton (MDT). The difference can shift during daylight saving changes, so checking the exact date matters.
Best use
Use the green rows to spot normal working hours in Calgary. For teams across more cities, open the meeting planner and compare up to five locations.
Plan a meetingMeeting guidance
The easiest overlap starts around 10:00 AM and runs through 5:00 PM in the source city, while the destination city is also inside normal working hours. For important calls, check the meeting date because the offset can change when either location enters or leaves daylight saving time.
Compare meeting hoursQuick examples
City context
Houston is located in United States (North America). It uses the America/Chicago timezone with a standard offset of UTC-05:00. It observes DST, switching between CST and CDT. See the full Houston time page for live clock and planning details.
Calgary is located in Canada (North America). It uses the America/Edmonton timezone with a standard offset of UTC-06:00. It observes DST, switching between MST and MDT. See the full Calgary time page for live clock and planning details.
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Current city times