About WordTimezone

WordTimezone helps people answer one everyday question: what time is it over there, and when can we talk? It started as a simple world clock and grew into a set of tools for remote teams, freelancers, students, travellers and anyone with family or colleagues in another country. Everything is free to use, runs in your browser and needs no account.

What you can do here

• World clock & time zone converter — compare cities side by side with colour-coded working hours.
• Meeting planner — find the hours when everyone on your list is at work.
• India ⇄ US converters — IST to EST, EDT, PST, CST and UTC, with both standard and daylight answers, plus the current time in India and Eastern time now.
• Time zones by country — offsets, clock-change dates and differences for every country.
• Live day & night map, DST tracker, public holidays by country and a free embeddable clock widget.

Where the data comes from

Time zone offsets and daylight-saving rules come from the IANA time zone database (the "tz database" used by operating systems and browsers), read through your browser's built-in Intl support. That means conversions follow the real rules for each region, including historical and half-hour offsets such as India (UTC+5:30) and Nepal (UTC+5:45).

Public-holiday calendars are generated from hand-checked lists for some countries and from an open-source rules library for the rest. The world map uses public-domain Natural Earth boundaries and a standard astronomical formula for the day/night line.

Accuracy, and what we do about mistakes

Governments change time zone and daylight-saving rules, sometimes with only a few weeks' notice, and holiday dates for lunar calendars can shift by a day. We keep the data current, but for anything important — a flight, a legal deadline, a market open — confirm with an official source. If you spot an error, please tell us with the page address and what you expected; verified corrections are fixed as soon as we can.

How the site is funded

WordTimezone is independently operated and free for everyone. It is supported by advertising (Google AdSense) shown next to the tools; ads never change the results you see. See the Privacy Policy for how advertising and your browser's local storage work, and the Terms of Service for the rules of use.

Get in touch

Questions, corrections or ideas for a new tool? Visit the contact page.