The story
From Israel + standard time (“time as measured by synchronising clocks in different geographical locations within a specific area to the same time zone”).
Etymology from Wiktionary, CC BY-SA 4.0.
Israel Standard Time
Today it means: A time zone, two hours ahead of UTC (UTC+02:00), observed by the State of Israel as its standard time; during the summer, it observes Israel Daylight Time, which is three hours ahead of UTC. Full definition →