World Clock
Exact time in all cities worldwide with real-time time zone offset
How do time zones work?
Earth is theoretically divided into 24 time zones, each offset by one hour. Coordinated Universal Time (UTC) is the global reference. New York is UTC-5 (winter) and UTC-4 (summer), London is UTC+0 (winter) and UTC+1 (summer).
Daylight Saving Time (DST)
DST is applied in many countries to take advantage of daylight. In Canada and the US, clocks spring forward one hour on the 2nd Sunday of March and fall back on the 1st Sunday of November.
Practical time differences
New York → London: +5h (winter) | New York → Tokyo: +14h | London → Dubai: +4h | London → New York: -5h. This information is essential for scheduling international meetings and calls.
Why choose OmniTools?
OmniTools brings together 20+ carefully crafted online tools built by our team. Every tool is designed to be fast, accurate and usable without sign-up. We believe essential everyday utilities — calculators, converters, generators — should be freely available with a clean interface and no intrusive ads. Our commitment: your data never leaves your browser.
Our tools are used daily by students, real-estate professionals, developers, designers, travelers and curious minds. Each tool comes with detailed documentation, formulas, reference values and practical tips to help you get the most out of it. We regularly ship new tools and improvements based on community feedback.
Frequently asked questions
Is this tool really free?
Yes, OmniTools is completely free, with no sign-up and no usage limit. No credit card required.
Is my data sent to a server?
No. All calculations and conversions run in your browser. Your data stays private on your device.
Does it work on mobile?
Yes, the interface is fully responsive and optimized for smartphones, tablets and desktops.
How often is the tool updated?
We continuously improve our tools based on user feedback to guarantee accuracy and reliability.