Date and time
Date Difference Calculator
Calculate calendar days, weeks and business days between two dates.
Open tool →6 Tools
Date and time
Calculate intervals, business days, time zones, age, calendars and durations.
Plan deadlines, test cycles and schedules.Convert formats and time zones used by different systems.Reproduce date and time scenarios in tests.
Date and time
Age Calculator
Calculate age in years, months and days for a reference date.
Open tool →Date and time
Business Day Counter
Count business days between dates and optionally add holidays.
Open tool →Date and time
Hours and Minutes Converter
Convert decimal hours and minutes and add or subtract durations.
Open tool →Date and time
Monthly Calendar Generator
Create a printable calendar for any month and year.
Open tool →Date and time
Time Zone Converter
Convert a date and time between IANA zones such as São Paulo, Lisbon and New York.
Open tool →How to choose the right tool
Start with the result you need, use fictional data whenever possible and review output before applying it to a real system. These related pages are organized so you can move from preparation to execution and validation without switching between many platforms.
Privacy and performance
The portal prioritizes in-browser processing. Tools that handle large files may use significant memory, so test with a copy and keep the original file safe.