IST Time Zone & Current Time
See India’s fixed UTC+5:30 time, then check whether an IST label means India, Ireland, or Israel before you convert it.
India time now
Indian Standard Time · UTC+5:30
India keeps IST all year — no DST
Same initials elsewhere Ireland — · Israel — ·
IST usually means Indian Standard Time
Indian Standard Time is fixed at UTC+5:30 and is maintained by India’s national time authority, CSIR-NPL. India does not use daylight saving time, so a dated India IST conversion keeps the same half-hour offset throughout the year.
The same IST initials can identify three different rules
Indian Standard Time is UTC+5:30. Irish Standard Time is Ireland’s summer time at UTC+1, while Ireland returns to GMT in winter. Israel Standard Time is UTC+2 in winter, while Israel uses IDT at UTC+3 in summer. A region-free “9:00 AM IST” can therefore identify different instants.
Compare all three meanings before accepting a meeting time
The comparison result applies the same date and wall-clock time to India, Ireland, and Israel. It marks whether the IST label is valid in each region on that date and shows the separate UTC result, making the ambiguity visible before you copy a conversion.
Ireland and Israel change clocks on different schedules
The converter uses the IANA zones Europe/Dublin and Asia/Jerusalem instead of assuming a fixed seasonal calendar. It rejects a local time skipped during a spring clock change and resolves a repeated fall time using the explicit IST label when that occurrence exists.
Keep the region attached to the result
Write “India IST,” “Ireland time,” or “Israel time” instead of a bare IST when another person must act on the result. The selected meaning card always includes the region and current abbreviation so the converted value is not detached from its rule.
Scope and privacy
The tool covers the India, Ireland, and Israel meanings of IST from 2000 through 2100 using browser IANA data. Your date, time, selected meaning, and destination zone stay in your browser and are not sent to ToolNeko.
Frequently asked questions
Where is the IST time zone?
Indian Standard Time covers India and is fixed at UTC+5:30. The same IST initials can also mean Irish Standard Time in Ireland's summer or Israel Standard Time in Israel's winter, so the region and date matter.
What is IST time in the USA?
There is no single U.S. conversion because the United States spans several time zones and most regions change clocks seasonally. Choose your U.S. destination and date above; the converter handles both the half-hour Indian offset and daylight-saving rules.
Is India GMT or IST?
India uses Indian Standard Time, which is 5 hours 30 minutes ahead of UTC or GMT. India does not switch to daylight time, so the offset stays UTC+5:30 all year.
What does IST mean in time?
IST most often means Indian Standard Time, but it can also mean Irish Standard Time or Israel Standard Time. Those three meanings use different UTC offsets, and the Irish and Israeli labels change with the season.
Does Ireland use IST all year?
No. Ireland uses GMT in winter and Irish Standard Time at GMT+1 in summer. The selected date determines which label is valid.
Does Israel use IST all year?
No. Israel uses Israel Standard Time at UTC+2 in winter and Israel Daylight Time at UTC+3 in summer. Israel follows its own clock-change dates.