Serial Date Converter

Convert between Excel serial dates and human-readable dates.

Serial Number
Enter a number between 1 and 2,958,465
Converted Date
Enter a serial number to see the date

Features

Our Serial Date Converter provides a simple way to convert between Excel serial dates (numeric representations) and human-readable dates. Excel stores dates as serial numbers where January 1, 1900 is day 1, making calculations easier but less intuitive for humans.

This tool supports bidirectional conversion - enter a serial number to see the corresponding date, or input a date to get its serial representation. Results are shown in both your local timezone and UTC for maximum compatibility. Perfect for spreadsheet analysis, data processing, and understanding legacy date formats.

Are you a happy user?

Buy us Coffee Donate
Share Facebook Twitter Reddit LinkedIn
Link to this Tool
Send feedback