Time Zones vs UTC Offsets in Your Prayer Timetable

Start with the city’s time zone

A prayer timetable needs the local date and clock rules for the city you selected. A name such as Europe/London identifies a set of time-zone rules; an offset such as UTC+01:00 describes the difference from UTC at a particular instant. Keep the city, date and zone together when comparing schedules.

IANA maintains a database of local-time rules and updates it when boundaries, offsets or daylight-saving policies change. The zone name lets software look up those rules for the relevant date. A fixed offset on its own cannot describe every date a place may use.

One instant can fall on different local dates

Consider 00:30 UTC on 1 November 2026. In this clock-conversion example, the same instant appears as:

• London, Europe/London:00:30 on 1 November.
• New York, America/New_York:20:30 on 31 October.
• Dubai, Asia/Dubai:04:30 on 1 November.

Read a date as carefully as a time

Those values illustrate clock conversion, not calculated prayer times. They show why a screenshot without a city and date can be difficult to interpret. A reader in another country may already be on the next calendar day while the selected city is still on the previous evening.

The US Naval Observatory’s time-zone explanation likewise warns that dates must be taken into account when converting to or from UTC. When saving a timetable, retain its date column and zone label rather than copying only the hour and minute.

Check the labels on AL-Naqawa

Our city pages show a named time zone with the location information. Read the displayed answer date as well as the city name. The interactive timetable uses the selected city’s zone; changing your device’s display zone is not a way to choose another city.

For example, compare the date and Europe/London label on the London page with a London monthly download. Keep the method, Asr rule and manual adjustments unchanged while checking this part of the result. The date-and-zone check solves a different problem from choosing a calculation convention.

A reliable comparison note

Write down the city, named zone, local date, method and source of each timetable. If a screen displays only an abbreviation or a UTC offset, look for the city and date before drawing conclusions. Abbreviations alone can be ambiguous.

Keep your browser and operating system current because their time-zone data can change. For a recently announced local clock change, also check the responsible authority; a familiar zone name does not prove that every device has the latest rules.