Calgary and Edmonton: the same clock, different prayer times
The IANA timezone database names each zone after one representative city. That's why Calgary's clock is listed as America/Edmonton. The name only identifies the clock. The calculator works out the sun's position for the point you choose, so Calgary and Edmonton use the same clock but get different prayer times.
Alberta has adopted a year-round time system (ABT) that stays at UTC−6. There is no November 2026 fallback, so Alberta clocks stay on UTC−6. The calculator's timezone data also shows UTC−6 through winter 2026–27. For earlier dates, the calculator uses the clock rules that applied at the time. Toronto still changes its clocks, so Calgary is now one hour behind Toronto in winter.
The comparison below uses and the city-centre points of Calgary (51.0447, −114.0719) and Edmonton (53.5461, −113.4938). Both rows use FCNA Canada 13°/13°, Standard Asr, the angle-based twilight rule and no manual minutes.
- Dhuhr: 13:39 in Calgary and 13:37 in Edmonton. Edmonton is slightly further east, so the sun reaches its highest point there a little earlier.
- Maghrib: 21:55 in Calgary and 22:07 in Edmonton. Edmonton is about 2.5° further north, so the midsummer sun sets later there.
- Fajr and Isha: both cities show Twilight rule limit. On this date the angle-based twilight rule sets these times, rather than the 13° angle on its own.
These values are for one fixed date, not today. Load this example opens the calculator with the same settings. On the Edmonton row it also switches the calculator to Edmonton, while this guide stays about Calgary.
| Example settings | Calculation date | Fajr | Maghrib | Isha | Load this example |
|---|---|---|---|---|---|
| Calgary centre | 21 Jun 2026 | Twilight rule limit | Twilight rule limit | Load this example | |
| Edmonton centre | 21 Jun 2026 | Twilight rule limit | Twilight rule limit | Load this example |
Scroll sideways to see all columns.
Calgary mosque timetables: Starts, Adhan and Iqamah
Several Calgary organisations publish their own timetables, and their columns don't all mean the same thing:
- The Islamic Information Society of Calgary (IISC) links its Iqamah Times to a schedule on iqamah.ca, which has separate Adhan and Iqamah columns. Jumu'ah is listed by location, so choose the centre you attend.
- The Muslim Council of Calgary prayer page has a general monthly prayer-times widget from IslamicFinder and links to individual centres. Use those links to find the congregation schedule of the centre you attend.
- The Calgary Islamic Centre in the southwest publishes dated times with columns labelled Starts and Iqamah.
Each column means something different:
- Starts: when the prayer time begins. This is the closest match to what the calculator shows.
- Adhan: when that centre gives the call to prayer. This may be later than the earliest start.
- Iqamah and Jumu'ah: set by each centre. A solar calculation can't work these out, so use the centre's current schedule for them.
Each Calgary centre publishes its own schedule, so times from one centre may differ from another's. You can bring your daily times closer to a particular centre:
- Find out which Fajr and Isha convention, Asr rule and minute adjustments the centre uses. Check its timetable or ask the centre directly.
- If the calculator has a matching option, set it in Calculation profile, Asr calculation, Twilight rule and the minute adjustments. Then compare several dates with the centre's timetable. If there's no matching option, follow the centre's own timetable.
Don't choose a method just because its times match a few days of a timetable. A close match doesn't show which method a centre uses. Why prayer times differ covers common reasons for small gaps. The calculation methods guide explains each profile.
Calgary summers, year-round UTC−6 and a printable month
Calgary is just north of 51°N. Around midsummer, twilight lasts so long that the starting angle-based rule limits Fajr and Isha, as in the 21 June example. Any time set this way shows a Twilight rule limit label in the results. The label tells you that the time comes from the rule rather than from the 13° angle itself.
If your mosque or teacher follows a different approach, change the Twilight rule setting. The high-latitude guide explains each option and when it makes a difference.
Monthly timetable builds a full month for your current point and settings. The printed page shows those settings and the dates, so set your profile, Asr rule and twilight rule before you press Print. Under Alberta's current rules, the clock affects printed months like this:
- A Calgary month from November 2026 onwards has no clock step. Times only shift gradually with the seasons.
- Older winter timetables may use UTC−7, which puts their clock times about an hour earlier than this winter's. Check the year and timezone on any saved timetable, and print the month you need instead of reusing an old one.
- A month from before the change can still show the clock step that applied then.
Times for your part of Calgary, and the Qibla from that point
The starting point, 51.0447, −114.0719, is an approximate centre of Calgary. Solar times shift by about four minutes for each degree of longitude. In summer, latitude also affects Fajr, Maghrib and Isha. A home or mosque away from the centre may therefore get slightly different times.
To calculate times for your own point:
- Use my location asks your browser for your position only when you press it. The privacy page explains how this works.
- Enter coordinates instead lets you type a latitude and longitude, for example from a map. The calculator doesn't look up street addresses.
After using either option, check that Timezone for this location shows America/Edmonton for a point in Calgary. To go back:
- Use Calgary centre again returns to the centre point and keeps your settings.
- Reset restores the centre point and the starting settings.
If you live in Edmonton, use the Edmonton prayer times page. Don't rely on the Edmonton example here.
The next-prayer countdown runs only when today's date is selected, and it skips Sunrise. You can show times in 12-hour or 24-hour format.
For the prayer direction, open the Qibla direction for Calgary. You can also press Find Qibla in the calculator, then check that the Qibla tool shows the point you chose.