Date & Time Tools
Week numbers, public holidays, date calculators, timezone converters, and time-related utilities.
8 free tools
Everything related to dates, times, and calendars. Calculate the current week number for any country's standard, find public holidays across 22 countries, convert between timezones, calculate the difference between two dates, or determine someone's exact age.
Date handling varies significantly across cultures and regions. Week numbering follows different standards (ISO 8601, US, UK/EU), public holidays differ by country, and timezone conversions require awareness of daylight saving time rules. These tools handle the complexity so you don't have to.
Whether you're planning international meetings, scheduling across timezones, checking holiday calendars for travel or business, or working with date calculations in software development, these tools provide instant, accurate results directly in your browser.