Global Date Time Pro — Date & Time Tools, World Clock, Meeting Planner

Global Date Time ProGlobal Date Time Pro is a free, accurate, and fast collection of date and time tools for professionals, remote teams, developers, and anyone who needs precise time calculations. Every tool runs instantly in your browser with no registration, no sign-up, and no stored data. Whether you are coordinating a call across continents, calculating someone's exact age, counting working days for a project, or converting a Unix timestamp, our tools give you reliable answers in seconds.Why use Global Date Time ProTime zones and date math are easy to get wrong. Daylight Saving Time shifts, regional holidays, leap years, and differing workweeks can turn a simple calculation into an error. Our tools handle these edge cases for you, drawing on up-to-date time zone data and holiday calendars for more than 190 countries. The interface is clean, fast, and works on any device, so you can plan and calculate with confidence wherever you are.Tools

World Clock — live clocks for major cities worldwide, updated every second so you always see the correct local time.

Time Zones — browse and compare all global time zones and UTC offsets in one searchable list.

Meeting Compatibility — find the best overlapping meeting times across multiple time zones and avoid scheduling conflicts.

Age Calculator — determine exact age in years, months, and days, including across time zones.

Date Difference — calculate the exact duration between any two dates, down to the day.

Business Days — count working days between dates, excluding weekends and regional holidays for 190+ countries.

Countdown Timer — track time remaining for upcoming events down to the second.

Unix Timestamp — convert epoch timestamps to readable dates and back, for developers and log analysis.

Working Hours Calculator — compute working hours, breaks, overtime, and earnings from your shift data.

Calendar Generator — create printable calendars for any month or year, with events and public holidays.

Who uses these toolsRemote teams use the World Clock and Meeting Compatibility to schedule standups and client calls without waking anyone at 3 a.m. Project managers rely on Business Days and Date Difference to plan deadlines and milestones. HR and payroll teams use the Working Hours Calculator to total shifts and overtime. Developers convert and debug Unix timestamps daily. Travelers, event planners, and students use the Countdown Timer and Calendar Generator to stay on schedule. Whatever your time-related task, there is a tool here to make it faster and more accurate.Frequently asked questionsAre these tools free?Yes. Every tool on Global Date Time Pro is completely free to use, with no account, no sign-up, and no hidden limits.Do you store my data?No. All calculations happen in your browser. We do not store the dates, times, or personal information you enter into the tools.How accurate are the time zones and holidays?We use current IANA time zone data and holiday calendars covering more than 190 countries, including Daylight Saving Time rules. Always confirm critical deadlines with your local authority, but our tools reflect the latest published schedules.Do the tools work on mobile?Yes. The interface is responsive and works on phones, tablets, and desktops, so you can calculate and plan from any device.Can I print or share my results?The Calendar Generator produces printable calendars, and you can share any result by copying the page link. There is nothing to install and nothing to export.Please enable JavaScript to use the interactive tools.