Late Isha in an Edmonton July: how the method changes Fajr and Isha
Edmonton sits at about 53.5°N. The sun sets every evening, even in midsummer, but it doesn't sink far below the horizon. As a result, dusk and dawn twilight fill much of the short night. Sunrise, Dhuhr, Asr and Maghrib barely change between methods. Fajr and Isha can move by an hour or more, depending on the twilight angle and the rule that limits it.
The comparison below uses at the approximate city centre (53.5461, −113.4938), with Standard Asr and no manual minutes. Sunrise is 05:24 and Asr is 18:01 in all three rows. Here is what changes:
- FCNA Canada 13°/13° with the angle-based rule (the starting settings): Fajr is 03:47 and Isha is 23:33. Both are labelled Twilight rule limit. The 13° time fell outside the share of the night that this rule allows, so the rule's bound was used.
- ISNA 15°/15° with the half-night rule: Isha is 01:21 and shows a next-day badge for 16 July. This time comes from the 15° angle itself, because it falls before the rule's half-night bound. Fajr, at 01:39, is labelled Twilight rule limit.
- Moonsighting Committee seasonal (General shafaq): Fajr is 03:30 and Isha is 23:09. Both are labelled Seasonal twilight, because they come from the profile's seasonal limits rather than its 18° base angle. This profile also adds its own built-in minutes, so Dhuhr reads 13:45 and Maghrib 21:58. The other two rows show 13:41 and 21:55.
Reading an Isha after midnight
In the ISNA row, Isha is still the Isha of the evening of 15 July, even though the clock has passed midnight. The next-day badge shows the calendar date that time falls on, 16 July. The calculation date stays 15 July. Isha for the evening of 16 July appears in the 16 July row. Fajr in any row is the dawn before that date's Sunrise.
These figures are for one fixed date, not today. Each row of the table opens the calculator with the same settings. Results for any date you choose carry the same labels, so you can see which criterion set each time.
If you follow a different approach, change Calculation profile or Twilight rule. The high-latitude guide explains the twilight rules. The calculation methods guide describes each profile.
| Example settings | Calculation date | Fajr | Isha | Load this example |
|---|---|---|---|---|
| FCNA Canada, angle rule | 15 Jul 2026 | Twilight rule limit | Twilight rule limit | Load this example |
| ISNA, half-night rule | 15 Jul 2026 | Twilight rule limit | 16 Jul 2026 | Load this example |
| Moonsighting seasonal | 15 Jul 2026 | Seasonal twilight | Seasonal twilight | Load this example |
Scroll sideways to see all columns.
Edmonton mosque timetables: start times, adhaan and iqamah
A prayer's start time and a mosque's congregation time are different things. For example, these two Edmonton mosques publish dated adhaan and iqamah times:
On , Al Rashid listed Isha adhaan at 23:14 and iqamah at 23:19. Masjid Quba listed 23:13 and 23:18. Neither matches any calculated row in the comparison above.
A mosque's time may be close to one profile, but that doesn't tell you which angles, twilight rule or minute adjustments the mosque uses. Don't choose a profile because a few numbers match.
Here is how each type of time relates to the calculator:
- Calculator times: calculated estimates of when each prayer starts, for your point and settings. In summer, Fajr and Isha may come from a twilight rule or seasonal limits. These are calculation conventions, not observations of dawn or dusk.
- Adhaan: when that mosque gives the call to prayer. This can be at the start time or later.
- Iqamah and Friday prayer: set by each mosque. Take these from the mosque's current schedule.
You can bring your daily times closer to a mosque you attend:
- Check its timetable, or ask the mosque, which Fajr and Isha convention, summer twilight rule, Asr rule and minute adjustments it uses.
- If the calculator has a matching option, set it in Calculation profile, Twilight rule and Asr calculation. Then compare several dates with the mosque's timetable.
- If there's no matching option, follow the mosque's own timetable.
The site also has a viewer of published Edmonton mosque calendars. It holds copies captured on 31 October 2026 that cover 1 June to 30 September 2026 only. Use it to compare that summer, not to find current times. It includes a button that opens 15 July 2026. For any later date, use the mosque's own page.
Alberta's year-round UTC−6 and what it means for Edmonton times
Edmonton's clock is the IANA timezone America/Edmonton, which Calgary also uses. Under Alberta's new time system (ABT), the province stays on UTC−6 all year. There is no November 2026 fallback, so Alberta clocks stay on UTC−6. The calculator's timezone data also keeps UTC−6 through winter 2026–27.
Here is what this means for your prayer times:
- Later clock times in winter: the sun hasn't changed, only the clock. Compared with a winter on UTC−7, each prayer now shows one hour later on the clock. That applies to Fajr and Sunrise in the morning and to Maghrib and Isha in the evening.
- Older timetables: older winter timetables may use UTC−7. Check the year and timezone on any saved or printed timetable before you rely on it. If in doubt, print the month you need from the calculator.
- Clock steps: months from November 2026 onwards have no clock step, so times only shift gradually from day to day. For earlier dates, the calculator uses the clock rules that applied then, so an older month can show a one-hour step.
- Toronto: Toronto still changes its clocks. Edmonton is one hour behind Toronto this winter. From 14 March to 7 November 2027, while Toronto is on daylight time, Edmonton is two hours behind.
Calgary uses the same clock, but it is further south and slightly further west, so its prayers fall at different clock times. If you live in Calgary, use the Calgary prayer times page rather than Edmonton's times.
A printable Edmonton month, your own point and the Qibla
Monthly timetable builds every day of a month for the current point and settings. The printed page records the settings it used along with the dates, so choose your profile, Asr rule and twilight rule first. If your settings put Isha after midnight, as the ISNA row does on 15 July 2026, that day's row shows the next calendar date beside Isha. Press Print to keep a paper copy of the month.
Choosing your point in Edmonton
The starting point, 53.5461, −113.4938, is an approximate city centre. 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.
- Change location and Search city presets switch the calculator to another city. This guide stays about Edmonton.
After using your device location or typed coordinates, check that Timezone for this location shows America/Edmonton, then press Calculate times. Reset restores the Edmonton centre point and the starting settings.
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.
Qibla from the same point
For the prayer direction, open the Qibla direction for Edmonton. You can also press Find Qibla in the calculator, then check that the Qibla tool shows the point you chose.