Date & Time Tools

Calculate the number of days between two dates or add/subtract days from a date. Free online days calculator tool.

Calculate the number of weeks between dates or add/subtract weeks from a date. Simple, free online week calculator.

Calculate business days between dates excluding weekends and holidays. Add or subtract working days from a date with our free business days calculator.

Browse calendar, view holidays and plan events with our interactive online calendar tool. Free, easy-to-use calendar with customizable holidays.

Check if a year is a leap year or find the next leap year with our free calculator. Learn about leap year rules and why we need them.

Calculate time differences or add/subtract hours, minutes, and seconds with our free online time calculator. Perfect for time tracking and management.

Convert times between different time zones around the world. Free time zone conversion tool for international meetings and calls.

Convert between Unix timestamps and human-readable dates. Free online tool for developers to work with epoch time and readable dates.

Calculate what time it was a specific number of minutes ago. Great for tracking when events occurred based on elapsed minutes.

Calculate the exact time until future events or deadlines. Find out how many days, hours, minutes until a specific date and time.

Free online timesheet calculator to track work hours, breaks, and calculate overtime pay. Generate CSV reports and manage employee time cards easily.