Time zone guides
Plain-English guides for the questions people ask us most: when to call, when clocks change, when markets open, and how to beat jet lag.
Meetings, calls and deadlines
Finding times that work, sending invites that show the right time, and deadlines nobody misreads.
Best Time to Call India from the USFind the best overlap window to schedule calls between India and the US. IST is 10.5 hours ahead of EST. These specific time slots work for both sides without a 3 AM alarm.
How to send a meeting invite that shows the right time for everyoneMake one calendar invite show the right time for everyone: time zone settings in Google Calendar, Outlook and Apple, and recurring meetings that survive DST.
Deadlines across time zones: EOD, midnight and “Anywhere on Earth”What "end of day", "midnight" and AoE deadlines really mean across time zones, how to write a deadline nobody can misread, and the AoE time in your own zone.
International Meeting Planning GuideExpert guide to scheduling international meetings across time zones. Find optimal meeting times for US-Europe, US-Asia, and global teams. Includes practical tips and tools.
Finding the Perfect Global Meeting Window: UTC 12-6 PMDiscover why UTC 12-6 PM is the ideal global meeting window. Comprehensive analysis covering 15+ time zones, business hours overlap, and practical scheduling tips for international teams.
Working across regions
Overlap windows, weekends and working hours for teams spread around the world.
Remote Work Time Zone Guide 2026Schedule remote team meetings across US, UK, India and Australia time zones. Find the daily overlap window for every common combination and avoid the 3 AM meeting mistake.
Working with the Gulf: time zones, weekends and Ramadan hoursGulf time zones, which days are the weekend, Ramadan working hours and the best times to reach the UAE, Saudi Arabia and Qatar from India, the UK and US.
Daylight saving time
When clocks change, who changes them, and what that does to your meetings.
Daylight Saving Time Calendar 2026Complete DST calendar for 2026: When Daylight Saving Time starts and ends worldwide. Includes US, Europe, Canada, Australia, and New Zealand schedules with exact dates and times.
Daylight Saving Time 2026: Which Countries Change Their Clocks and WhenWhich countries observe daylight saving time in 2026 and their exact dates, including Canada’s 2026 changes, plus countries that keep one time all year.
Markets
Exchange sessions and holidays, with the times converted for you.
Stock Market Hours Worldwide: Complete Global Trading Schedule 2026Complete guide to stock market hours worldwide. NYSE, NASDAQ, LSE, Tokyo, Hong Kong trading times. Never miss market opening times with our global trading schedule.
Crypto Market Hours Worldwide 2026Crypto trades 24/7, but activity is not even across the day. When bitcoin trading is busiest by hour, with the London and New York overlap in EST, GMT, IST and AEST.
Travel and events
Jet lag, the date line, and watching live events from another time zone.
Travel Time Zone Tips & Jet Lag GuideExpert travel tips for managing time zones. Beat jet lag, stay connected with home, and adjust quickly. Includes flight planning, adjustment strategies, and apps.
The International Date Line: why you can land before you take offHow the International Date Line works, why flights from Asia land "before" they leave, how Samoa skipped a day in 2011, and why three dates exist at once every day.
FIFA World Cup 2026 Time Zones: Watch Schedule for Every CountryFIFA World Cup 2026 (11 June–19 July) kick-off times converted to EDT, BST, IST, JST and AEST, with the time zone of all 16 host cities.
Learn the basics
How time zones work, why India has just one, and how to use a converter without mistakes.
Complete Time Zone Education GuideLearn everything about time zones: history, how they work, UTC vs GMT, and practical tips for time conversion. Complete educational guide for students and professionals.
Why India has only one time zone, and why it is UTC+5:30Why India uses a single time zone five and a half hours ahead of UTC, how IST began in 1906, why the Northeast sees sunrise two hours earlier, and the IST-II proposal.
Complete Time Zone Converter GuideMaster time zone conversion with our comprehensive guide. Learn to use online converters effectively, avoid common mistakes, and coordinate across global time zones.
Global Time Zone Statistics 2026Sourced 2026 time zone facts: IANA tzdata zone counts, UTC offsets in use, which countries change clocks, DST laws and remote-work survey data.
Printable sheets
Free one-page references you can print or save as a PDF.