IST to PST Converter — India to US Pacific Time

What This Tool Does

This tool converts a specific date and time from India Standard Time (IST, UTC+5:30) to US Pacific Time — the zone Los Angeles, San Francisco, Seattle and the rest of the US West Coast (including most of the tech industry) use. It automatically handles the switch between Pacific Standard Time (PST) and Pacific Daylight Time (PDT) depending on your date. See our explainer on how time zones actually work for why IST itself never shifts this way.

How to Use It

Enter the IST date and time you want to convert (the tool is pre-set to convert IST → PST/PDT).
Press Convert.
The equivalent US Pacific Time appears instantly — since Pacific is the furthest-behind major US zone from IST, a conversion very often lands on the previous calendar day in the US.

Example

A 9:30 PM IST call with a Bay Area tech team lands at 9:00 AM PDT the same US calendar day during US daylight saving (roughly March to November), or 8:00 AM PST outside that window — a 13-13.5 hour gap that makes same-day overlap windows tight.

Frequently Asked Questions

What is the time difference between IST and PST?

IST is 13 hours 30 minutes ahead of PST (US Pacific Standard Time). During Pacific Daylight Time (PDT), that gap narrows to 12 hours 30 minutes, since IST itself never changes for daylight saving.

Why is India-to-Pacific coordination harder than India-to-Eastern?

US Pacific Time is 3 hours behind US Eastern Time, so the gap from IST is correspondingly larger (roughly 12.5-13.5 hours vs 9.5-10.5 hours for Eastern) — leaving a much narrower, often evening-for-India/morning-for-California overlap window for live calls.

What's a reasonable overlap window for IST/Pacific work calls?

Roughly 9:00–11:30 PM IST lines up with 8:30–11:00 AM US Pacific Time (morning in California), typically the most practical shared window given the roughly 13-hour gap.