Calculate the exact number of years, months, days, and weeks between any two dates — plus weekday count.
The calculator finds the exact years, months, and days between two dates, accounting for varying month lengths and leap years, plus the total number of days and weeks.
This tool calculates total calendar days and also shows the count of weekdays (excluding Saturdays and Sundays) between the two dates.
No, you can enter either date as start or end — the tool automatically calculates the absolute difference regardless of order.
The Age Calculator is specifically for calculating age from a date of birth to today (or another date). This tool calculates the difference between any two arbitrary dates, for any purpose.
This tool calculates the exact time span between any two dates — not limited to age or birth dates — expressed in years, months, and days, along with total days, weeks, and weekday count. It's useful for project planning, event countdowns, contract terms, and any situation where you need to know exactly how much time separates two dates.
The tool first determines which of your two entered dates is earlier, then calculates the difference using calendar-aware arithmetic that correctly accounts for varying month lengths (28-31 days) and leap years, producing an accurate years/months/days breakdown. Alongside this, it computes the total number of calendar days and weeks between the dates using straightforward millisecond-based subtraction, plus a count of weekdays (Monday through Friday) versus weekend days within the span.
This tool distinguishes between total calendar days (every day, including weekends) and weekday count (only Monday through Friday), since many practical applications — like calculating business days for a project timeline or a service level agreement — specifically care about working days rather than the full calendar span.
All calculations run directly in your browser using JavaScript's built-in date handling — no dates you enter are sent to a server or stored anywhere.