3 PM PST to IST

Dual 24-Hour Time-Wheel

Common Pacific Call Times

One-click presets for the most-searched Pacific meeting slots.

PST → IST Hour-by-Hour Table

Need the reverse? Go from IST to PST instead.

The Offset Formula

What 3 PM PST Really Means in India

Zone Reference

Offsets per the IANA tz database. India anchored to the 82.5° E meridian; US DST per the Energy Policy Act 2005.

No saved conversions yet. Tap "Save to History" to remember up to six PST → IST lookups.

How to Convert 3 PM PST to IST with the Time-Wheel

1. Set the Pacific time — drag around the wheel to position the indigo outer-ring marker, or type into the time field for an exact minute.
2. Pick the Pacific mode: PST (UTC-8) for November–March or PDT (UTC-7) for March–November per the Energy Policy Act 2005 schedule.
3. Read the purple India inner-ring marker — it follows the +13:30 (PST) or +12:30 (PDT) offset, and the center readout shows the IST time with a "next day" flag when it rolls past midnight.
4. Check the verdict band: green means India business hours, amber means a workable edge, red means India is asleep (which 3 PM Pacific always is).
5. Save the snapshot to compare call windows, or tap a preset chip for the most common Pacific meeting slots.

Why This Converter Exists

In 2026, a customer-success director in San Diego keeps proposing a 3 PM Pacific QBR with an account team in Bengaluru, forgetting each time that 3 PM PST is 4:30 AM in India. That recurring scheduling miss — an easy Californian mid-afternoon that becomes a pre-dawn 4:30 AM ask for everyone in India — is exactly what this dual time-wheel exists to make obvious. India Standard Time (IST) sits at a flat UTC+5:30 and observes no daylight saving, so the only moving part is whether California is on Pacific Standard Time (PST, UTC-8) or Pacific Daylight Time (PDT, UTC-7).

The half-hour that newcomers stumble over is rooted in Indian history. India Standard Time was standardised in 1906 and anchored to the 82.5° E meridian near Mirzapur, a single national compromise replacing the older Bombay Time and Calcutta Time of the British Raj. Because the offset is +5:30 rather than a whole number of hours, every Pacific-to-IST conversion lands on a half-hour: 3:00 PM PST becomes 4:30 AM IST the next day under PST and 3:30 AM IST the next day under PDT.

Pacific Time is the side that swings twice a year. Under the US Energy Policy Act of 2005, daylight saving begins on the second Sunday of March and ends on the first Sunday of November. From March to November California runs on PDT (UTC-7); the rest of the year on PST (UTC-8). That single hour is why 3 PM Pacific is 4:30 AM IST in winter but 3:30 AM IST in summer — India never moves, so the entire shift comes from the Pacific side, which is why the inner and outer wheels below carry an explicit PST/PDT toggle.

The IANA time zone database — the tz database maintained by Paul Eggert and contributors — encodes Pacific Time as America/Los_Angeles and India as Asia/Kolkata. Asia/Kolkata has carried a flat +05:30 rule since 1945 with zero daylight-saving transitions, so India never needs special-casing in software. America/Los_Angeles carries the full US DST ruleset, so any correct converter must know today's date or let you toggle the mode — the time-wheel takes the explicit-toggle route.

GMT and UTC are used interchangeably in scheduling apps, yet they differ: GMT is a time zone equal to UTC+0 on the Greenwich meridian, while UTC is the atomic standard the world's clocks track. Converting through UTC is the cleanest method: 3 PM PST is UTC-8, so UTC = 15:00 + 8:00 = 23:00; IST is UTC+5:30, so 23:00 + 5:30 = 04:30 the next day. The gap is a fixed 13 hours 30 minutes in winter and 12 hours 30 minutes in summer.

The practical reason behind this page is the punishing call window. A 3 PM Pacific QBR is a relaxed mid-afternoon for California but lands at 4:30 AM (PST) or 3:30 AM (PDT) in India — the pre-dawn hours, still firmly the night. The dual wheel makes the misalignment unmistakable: as you rotate the Pacific outer ring to 3 PM, the India inner ring sweeps into a shaded night arc, and the verdict states plainly that no one in Bengaluru, Hyderabad, or Mumbai should be expected on a live QBR at 4:30 AM.

Distributed US–India teams have managed this constraint since the offshore-IT boom of the late 1990s, when Infosys, Wipro, and TCS built delivery centres timed to overlap with US clients. The humane overlap is narrow — roughly 8:00 AM to 10:30 AM Pacific maps to a tolerable 8:30 PM to 11:00 PM India evening on PDT. A 3 PM Pacific slot sits far beyond that band, and the rotating wheel turns that hard-won knowledge into a single shareable alignment for any hour you test.