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Read a zmanim table without overlooking its settings

Check location, date, time zone and calculation method before comparing prayer-time tables.

A time in a zmanim table belongs to a particular place, date and calculation convention. Two screens can disagree because one setting differs, even when neither screen has a simple arithmetic error.

Start by reading the labels around the time you need. A sunrise entry, a latest-time entry and a nightfall entry describe different events. Comparing unlabeled numbers can conceal the very distinction you are trying to understand.

Check the context before the minute

Confirm that the selected city is where you intend to observe the time, not merely the city your phone used on a previous trip. Check the civil date and the city's time zone, including any applicable clock change. When a table identifies a method or opinion, keep that label with the time you copy.

  • City or coordinates
  • Civil date and local time zone
  • Name of the zman being displayed
  • Calculation convention and community custom

Compare like with like

Hebcal documents several definitions for nightfall and different opinions for some latest prayer times. Its documentation also notes expected differences between calculation sources. A later-looking number is therefore not automatically an error or an interchangeable deadline.

Amidora shows local zmanim and places the selected city's time zone beside the day's context. Use that information to catch an accidental city selection before planning your day. For a practical halachic question, follow your rabbi and community's accepted timetable rather than choosing whichever app gives the most convenient number.

The Hebrew date tool on this site is deliberately narrower: it formats a calendar date and does not calculate a single zman. A date result should never be treated as evidence for sunrise, sunset or candle-lighting time.

Questions, answered

Why do two apps show different nightfall times?

Check their definitions, location, date and time zone. Different conventions can produce different results for the same evening.

Can I use my home city's table while traveling?

Use the correct destination and its time zone. Ask your community about any practical questions arising from the journey.

Sources & method

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Keep going in Amidora

Read prayers in Ashkenaz, Sefard or Edot HaMizrach nusach. · See zmanim for the selected city in that city's time zone. · Use a monthly luach, Shabbat information and the Omer count.

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