ICT to EST Time Converter

Common Times Converted

ICT on the left, EST on the right.

ICT to EST: Full 24-Hour Conversion Table

Shaded rows are working hours; the darker shade marks the hours when both zones are at work.

What ICT and EST Actually Are

ICT — Indochina Time

Bangkok, Ho Chi Minh City, Hanoi, Phnom Penh, Vientiane. Standing at UTC+7:00 as written, and the region does not change its clocks, so that offset holds all year.

Indochina Time is shared across four countries, which makes South-East Asian scheduling unusually simple compared with Europe or the Americas.

EST — Eastern Standard Time

New York, Toronto, Washington DC, Atlanta, Miami, Boston. Standing at UTC-5:00 as written, and the region does change its clocks, so its live offset moves by an hour twice a year. The next change is on Sunday, November 1, 2026, to EST. Australia also uses EST for its own Eastern Standard Time (UTC+10), now more often written AEST.

Eastern Standard Time is only actually in force from early November to mid-March. For the other eight months the same region is on EDT, which is why so many EST conversions are quietly wrong.

What This Means in Practice

The date changes mid-working-day

For 2 of the eight hours in a normal ICT working day, the equivalent EST time falls on a different calendar date. Anything scheduled in that stretch needs the date checked as well as the time, or a Tuesday call quietly becomes a Wednesday one at the other end.

This gap is not fixed

EST changes its clocks and ICT does not, so the difference between them moves by an hour twice a year. A recurring meeting set now will drift for one side from Sunday, November 1, 2026 unless someone resets it.

Nearly opposite sides of the clock

At 11 hours apart, one side's morning is the other side's night. Handing work over at the end of a shift usually beats trying to get both parties in the same call.

Major Cities in Each Zone

Cities on ICT

Cities on EST