Clockjumper

Timezone conversion

IST to Boston Time — Convert India Standard Time to Boston

Boston is currently 9 hours and 30 minutes behind IST. The gap shifts across the year: around January Boston is 10 hours and 30 minutes behind IST, and around July it is 9 hours and 30 minutes behind IST, because one or both zones observe daylight saving.

Boston is currently 9 hours and 30 minutes behind IST.

IST • IST (UTC+5:30)
8:03 PM
Thursday, Sep 10
Boston • EDT (UTC-4)
10:33 AM
Thursday, Sep 10

Abbreviation disambiguation

On Clockjumper, IST refers to India Standard Time (UTC+5:30). The same three letters are also used for Israel Standard Time (UTC+2) and Irish Standard Time (UTC+1) — check the city or UTC offset to be sure which is meant.

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Full IST to Boston conversion table

ISTBoston
12:00 AM2:30 PM(previous day)
1:00 AM3:30 PM(previous day)
2:00 AM4:30 PM(previous day)
3:00 AM5:30 PM(previous day)
4:00 AM6:30 PM(previous day)
5:00 AM7:30 PM(previous day)
6:00 AM8:30 PM(previous day)
7:00 AM9:30 PM(previous day)
8:00 AM10:30 PM(previous day)
9:00 AM11:30 PM(previous day)
10:00 AM12:30 AM
11:00 AM1:30 AM
12:00 PM2:30 AM
1:00 PM3:30 AM
2:00 PM4:30 AM
3:00 PM5:30 AM
4:00 PM6:30 AM
5:00 PM7:30 AM
6:00 PM8:30 AM
7:00 PM9:30 AM
8:00 PM10:30 AM
9:00 PM11:30 AM
10:00 PM12:30 PM
11:00 PM1:30 PM

Daylight saving and how the gap changes

Around January Boston is 10 hours and 30 minutes behind IST. Around July it is 9 hours and 30 minutes behind IST. That swing comes from one or both zones observing daylight saving on different schedules — the converter above always reflects the correct offset for the date you pick.

Frequently asked questions

Is Boston ahead of or behind IST right now?
Boston is currently 9 hours and 30 minutes behind IST.
What is the current IST to Boston time difference?
Right now the gap is 9 hours and 30 minutes — Boston is 9 hours and 30 minutes behind IST.
Does the IST → Boston offset change during the year?
Yes. Around January Boston is 10 hours and 30 minutes behind IST; around July it is 9 hours and 30 minutes behind IST. The converter above always reflects the correct offset for the date you pick.
Does IST observe daylight saving time?
No — India Standard Time stays at a fixed UTC offset year-round.
Does Boston observe daylight saving time?
Yes — Boston observes DST, so its UTC offset shifts by 1 hour between winter and summer.
What time is 3 AM IST in Boston?
3:00 AM IST is 5:30 PM (previous day) Boston.
What time is 8 AM IST in Boston?
8:00 AM IST is 10:30 PM (previous day) Boston.
What time is 9 AM IST in Boston?
9:00 AM IST is 11:30 PM (previous day) Boston.
What time is 10 AM IST in Boston?
10:00 AM IST is 12:30 AM Boston.
What time is 11 AM IST in Boston?
11:00 AM IST is 1:30 AM Boston.
What time is 12 PM (noon) IST in Boston?
12:00 PM IST is 2:30 AM Boston.
What time is 2 PM IST in Boston?
2:00 PM IST is 4:30 AM Boston.
What time is 3 PM IST in Boston?
3:00 PM IST is 5:30 AM Boston.
What time is 4 PM IST in Boston?
4:00 PM IST is 6:30 AM Boston.
What time is 5 PM IST in Boston?
5:00 PM IST is 7:30 AM Boston.
What time is 9 PM IST in Boston?
9:00 PM IST is 11:30 AM Boston.
What time is 10 PM IST in Boston?
10:00 PM IST is 12:30 PM Boston.
When is the best time to schedule a call between IST and Boston?
IST and Boston have no direct 09:00–17:00 overlap on the same calendar day. Consider early-morning or late-evening slots on one side, or an asynchronous handoff.
What time zone does IST refer to?
IST refers to India Standard Time (IANA: Asia/Kolkata).
What time zone does Boston refer to?
Boston uses the America/New_York time zone.
Is IST on this page the same as other zones that share the letters "IST"?
On Clockjumper, IST refers to India Standard Time (UTC+5:30). The same three letters are also used for Israel Standard Time (UTC+2) and Irish Standard Time (UTC+1) — check the city or UTC offset to be sure which is meant.

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