IST to PST Converter
Here IST is India Standard Time (Asia/Kolkata, New Delhi) and
PST is Pacific Standard Time (North America) (America/Los_Angeles, Los Angeles). This page also
serves the reverse direction, PST to IST — same gap, opposite sign. Every offset, gap
and date below is computed from the IANA time zone database for the exact date, not typed in, and
is stated as of September 2026.
Convert IST to PST
Pre-set to New Delhi → Los Angeles. Swap the two menus to convert PST to IST; the result shows both offsets for the date you pick.
Which IST and which PST?
Zone abbreviations are ambiguous, so this page starts by pinning both down.
IST here is India Standard Time: the IANA zone Asia/Kolkata,
anchored on New Delhi. Note that IST is also Irish Standard Time and Israel Standard Time; this page means only the New Delhi sense. PST here is Pacific Standard Time (North America): America/Los_Angeles, anchored on
Los Angeles. Note that PST is also Philippine Standard Time (usually written PHT); this page means only the Los Angeles sense.
New Delhi keeps UTC+5:30 all year — its January and July offsets are both UTC+5:30 — so IST has no summer-time sibling and never needs disambiguating by season.
PST in the everyday sense means Los Angeles time, whichever of PST or PDT (Pacific Daylight Time) is in force. Los Angeles is not on PST all year: its offset is UTC−8 while standard time applies (its January offset) and UTC−7 while daylight saving is active (its July offset). As of September 2026 it is on PDT (UTC−7). Wherever this page writes PST, read it as "Los Angeles time on the date in question".
New Delhi's offset is not a whole number of hours, which is why every gap on this page carries minutes as well as hours: the difference between UTC+5:30 and UTC−7 cannot be a round number.
The difference as of September 2026
As of September 2026, Los Angeles is 12:30 hours behind New Delhi. New Delhi is on UTC+5:30 (no seasonal change) and Los Angeles is on UTC−7 (PDT, daylight saving in effect). Subtract one offset from the other and you have the gap. As wall clocks: 9:00 AM in New Delhi is 8:30 PM the previous day in Los Angeles, 5:00 PM in New Delhi is 4:30 AM in Los Angeles, and 9:00 AM in Los Angeles is 9:30 PM in New Delhi.
The calendar date is part of the conversion on this pair. A 9:00 AM to 5:00 PM day in New Delhi reads 8:30 PM the previous day to 4:30 AM in Los Angeles, and a 9:00 AM to 5:00 PM day in Los Angeles reads 9:30 PM to 5:30 AM the next day in New Delhi, so a time on one side can belong to a different date on the other. The converter above flags each reading that lands on the previous or next day; the date you enter is the date on the From side's clock.
Next scheduled clock changes: no clock change is scheduled for New Delhi within the next 450 days; clocks in Los Angeles go back 1 hour on Sunday, November 1, 2026 (local date), moving the offset from UTC−7 to UTC−8. Only Los Angeles's changes matter to this pair, and each one moves the gap.
How the gap changes through the year
Only one side of this pair changes its clocks. New Delhi keeps UTC+5:30 all year — its January and July offsets are identical — while Los Angeles moves between UTC−8 (its January offset, PST) and UTC−7 (its July offset, PDT). Every time Los Angeles shifts, the whole difference shifts with it, because the other offset is standing still. So the gap takes two values a year: Los Angeles is 13:30 hours behind New Delhi while Los Angeles is on PST, and 12:30 hours behind New Delhi while it is on PDT.
Over the year scanned from Sep 7, 2026, the engine finds two such moves, each at the exact minute Los Angeles's clocks change:
- Sunday, November 1, 2026 (Los Angeles date): the gap goes from 12:30 hours behind to 13:30 hours behind.
- Sunday, March 14, 2027 (Los Angeles date): the gap goes from 13:30 hours behind to 12:30 hours behind.
The practical consequence is the one that catches recurring meetings. A call fixed at 9:00 AM on New Delhi's clock is 7:30 PM the previous day in Los Angeles while Los Angeles is on PST, and 8:30 PM the previous day while it is on PDT. Nobody in New Delhi sees the meeting move, but on Los Angeles's calendar it jumps by 1 hour on each of the dates above. The reverse is just as true: a 9:00 AM slot fixed on Los Angeles's clock lands at 10:30 PM or 9:30 PM in New Delhi depending on the season. Whichever side owns the invitation, the other side sees it move twice a year — which is exactly what the converter above accounts for when you give it a date.
Working hours that overlap
Assume a 9:00 AM to 5:00 PM day on both sides. Because the gap changes during the year, the overlap changes with it, so it is shown for each gap the pair takes:
- Los Angeles 13:30 hours behind New Delhi (IST / PST; 133 of the 365 days scanned): no overlap at all: when it is 9:00 AM in Los Angeles it is already 10:30 PM in New Delhi.
- Los Angeles 12:30 hours behind New Delhi (IST / PDT; 232 of the 365 days scanned): no overlap at all: when it is 9:00 AM in Los Angeles it is already 9:30 PM in New Delhi.
The 9-to-5 window is a convention, not a fact about anyone's real hours. The Meeting Planner lets you set each side's actual working hours and shows the overlap for the exact date you are planning.
Converting PST to IST
This page serves both directions, because the reverse conversion is the same gap with the sign flipped. As of September 2026, New Delhi is 12:30 hours ahead of Los Angeles, so:
- 9:00 AM IST (New Delhi) = 8:30 PM the previous day PST (Los Angeles)
- 9:00 AM PST (Los Angeles) = 9:30 PM IST (New Delhi)
- 5:00 PM PST (Los Angeles) = 5:30 AM the next day IST (New Delhi)
To run PST to IST in the converter above, swap the From and To menus; the result shows both offsets for the date you enter and flags a day change whenever the reading lands on the previous or next calendar day. The readings above hold only while the gap is 12:30 hours behind; on the dates listed in the section above they move, in both directions at once.
More on these zones
- Current time in New Delhi — live clock, offset and next clock change.
- Current time in Los Angeles — live clock, offset and next clock change.
- Time Zone Converter — any city to any city, DST-correct for the date.
- Meeting Planner — overlap for your real working hours.
- All zone-to-zone converters — the other corridors on this site.
IST to PST — frequently asked questions
What is the time difference between IST and PST right now?
As of September 2026, Los Angeles (PST) is 12:30 hours behind New Delhi (IST): New Delhi is on UTC+5:30 and Los Angeles is on UTC−7. So 9:00 AM in New Delhi is 8:30 PM the previous day in Los Angeles, and 9:00 AM in Los Angeles is 9:30 PM in New Delhi.
Does the IST to PST difference change during the year?
Yes, twice in the year scanned from Sep 7, 2026, because only Los Angeles changes its clocks. On Los Angeles's calendar the gap moves on Nov 1, 2026 (from 12:30 hours behind to 13:30 hours behind) and Mar 14, 2027 (from 13:30 hours behind to 12:30 hours behind). As of September 2026 it is 12:30 hours behind.
Which IST and which PST does this page mean?
IST means India Standard Time, the IANA zone Asia/Kolkata, anchored on New Delhi. Note that IST is also Irish Standard Time and Israel Standard Time; this page means only the New Delhi sense. PST means Pacific Standard Time (North America), the IANA zone America/Los_Angeles, anchored on Los Angeles. Note that PST is also Philippine Standard Time (usually written PHT); this page means only the Los Angeles sense. In everyday use PST means Los Angeles time whichever of PST or PDT is in force; as of September 2026 that is PDT (UTC−7).
When do working hours in New Delhi and Los Angeles overlap?
It depends on the season, because the gap moves. Assuming 9:00 AM to 5:00 PM on both sides: while Los Angeles is 13:30 hours behind New Delhi (IST / PST), no overlap at all: when it is 9:00 AM in Los Angeles it is already 10:30 PM in New Delhi; while Los Angeles is 12:30 hours behind New Delhi (IST / PDT), no overlap at all: when it is 9:00 AM in Los Angeles it is already 9:30 PM in New Delhi. The 9-to-5 window is a convention, not anyone's actual hours — set your real hours in the Meeting Planner.
How do I convert PST to IST?
Apply the same gap with the sign flipped. As of September 2026, New Delhi is 12:30 hours ahead of Los Angeles, so 9:00 AM in Los Angeles is 9:30 PM in New Delhi and 5:00 PM in Los Angeles is 5:30 AM the next day in New Delhi. The converter on this page handles both directions: swap the From and To menus. Because the gap moves during the year, convert for the specific date rather than reusing a remembered number.
What are IST and PST as UTC offsets?
As of September 2026, IST (Asia/Kolkata) is UTC+5:30 and PST (America/Los_Angeles) is UTC−7. New Delhi keeps UTC+5:30 in January and July alike. Los Angeles is on UTC−8 in January and UTC−7 in July. The difference between the two offsets is the gap: 12:30 hours behind.
Conversions are computed locally in your browser from its IANA time zone data; nothing you enter is transmitted. The schedule and offsets on this page were derived from the same database at build time, as of September 2026. Jurisdictions occasionally change DST law with short notice, and the IANA database follows reality — for legally critical timing, confirm against an official source. See the methodology page.