Time Zone Converter

Convert time across different time zones worldwide. Perfect for scheduling international meetings. This tool processes all data locally in your browser. No information is ever sent to any server. Completely free, no registration required.

How to Use the Time Zone Converter

1. Enter your input values above
2. Results update automatically
3. Copy or download the output

What is a Time Zone Converter?

A Time Zone Converter instantly translates a time from one time zone to another, making it indispensable for scheduling meetings across continents, planning international travel, coordinating remote teams, and joining global online events. With 38 time zones worldwide and daylight saving time (DST) adding complexity (different countries change on different dates, and some don't observe DST at all), manual time zone math is error-prone. In 2026, with global remote work at an all-time high, the ability to quickly convert '2pm PT' to '10pm in London' or '7am in Tokyo' is a daily necessity for millions.

How Does It Work?

Enter a time, select the source time zone (or use 'Now' for the current time), and select the target time zone. The converter displays the equivalent local time in the target zone, accounting for both UTC offset and current DST rules. Major city presets (New York, London, Tokyo, Sydney, Dubai, Mumbai) speed up common conversions. A world clock view shows the current time across major global cities simultaneously.

Formula

Target Time = Source Time − Source UTC Offset + Target UTC Offset\n\nWhere UTC Offset includes current DST adjustment:\n• US Eastern: UTC−5 (EST) or UTC−4 (EDT, Mar-Nov)\n• London: UTC+0 (GMT) or UTC+1 (BST, Mar-Oct)\n• Tokyo: UTC+9 (no DST)\n• Sydney: UTC+10 (AEST) or UTC+11 (AEDT, Oct-Apr)\n\nDST Rules (2026):\n• US: 2nd Sunday March to 1st Sunday November\n• Europe: Last Sunday March to Last Sunday October\n• Southern Hemisphere: October to March/April\n\nMeeting Window Overlap = min(end1, end2) − max(start1, start2)

Who Uses This Tool?

• Remote teams scheduling meetings across US, Europe, and Asia
• Travelers confirming flight times in destination local time
• Event organizers communicating start times to global audiences
• Freelancers coordinating with international clients on deadlines
• Anyone attending global online events (webinars, gaming, streaming)

Pro Tips

• When scheduling across time zones, always include both time zones in the invite: 'Meeting at 9am PT / 12pm ET / 5pm BST / 1am JST'. Let attendees verify
• The 'golden hour' for global meetings: 8-9am PT = 11am-12pm ET = 4-5pm UK = 5-6pm EU = 1-2am next day Sydney. Only US→Europe works; Asia is excluded
• Always confirm DST status: not all countries observe it, and those that do change on different dates. Arizona and Hawaii don't observe DST at all
• For international flights, always double-check arrival times in local time. A 14-hour flight departing NY at 6pm arrives London at ~6am local the next day — which might feel like 1am to your body

Frequently Asked Questions about Time Zone Converter

How do I schedule a meeting across multiple time zones?

Find the overlapping business hours window. For US + Europe: 8-10am PT / 11am-1pm ET / 4-6pm UK. For US + Asia: very limited — best window is ~4-6pm PT / 7-9am next day in Tokyo/Shanghai. Use rotating meeting times to share the burden of early/late calls.

Why does daylight saving time exist?

DST shifts daylight from early morning (when most people sleep) to evening (when most people are awake), theoretically reducing energy use and increasing leisure time. However, it's increasingly controversial: the US Senate passed the Sunshine Protection Act to make DST permanent, but it hasn't become law as of 2026.

Free online Time Zone Converter — no signup, 100% client-side processing. All data stays in your browser.