Israel Daylight Time

Frequently asked questions

Common questions about IDT, daylight saving, and how to handle it in software. Can't find what you need? Email [email protected].

What does IDT abbreviation stand for?

IDT stands for Israel Daylight Time, the daylight saving designation used when clocks move forward from the standard Israel Standard Time to extend evening daylight across Israel.

Which city represents this region?

Jerusalem is the representative zone for IDT, reflecting the country‑wide practice of advancing clocks during daylight saving and anchoring the region’s timing to this central reference.

Is the whole region always on daylight saving?

All member zones in this region observe daylight saving, so the country shifts clocks forward together rather than split‑timing, giving you one consistent offset at any given moment.

When does the current offset apply?

IDT (UTC+03:00) applies from the Friday before the last Sunday in March until the last Sunday in October.

When does IDT end?

IDT ends on the last Sunday in October at 02:00, when clocks go back one hour to Israel Standard Time (UTC+02:00).

How does this affect cross‑time collaboration?

With the entire country advancing together, you only need one reference offset for Jerusalem, simplifying scheduling across Israel during summer windows.

Is Jerusalem always UTC+03:00?

No. Jerusalem is on UTC+03:00 (IDT) only from late March to late October; the rest of the year it uses Israel Standard Time, UTC+02:00.

Does IDT cover multiple countries?

No, IDT is used exclusively by Israel, giving the region a single, unified clock rather than multiple countries under one code.