Date & Time Tools
Powerful utilities for working with calendar dates and clock times
Spell a Calendar Date
Quickly write a calendar date in text format (as English text). Convert numerical dates to written words.
Add Fuzziness to Clock Times
Quickly add slight perturbations to the given clock times. Make times more human-like with natural variations.
Add Fuzziness to Calendar Dates
Quickly add slight perturbations to the given calendar dates. Create date variations while maintaining proximity.
Find Day of the Week
Quickly find what day of the week the given calendar date falls on. Discover weekday names for any date.
Find Day of the Year
Quickly find what day of the year the given calendar date falls on. Calculate ordinal day numbers.
Find Week of the Year
Quickly find what week of the year the given calendar date falls on. Get ISO week numbers.
Find Date by Day of the Year
Quickly calculate the calendar date from a day number of a year. Convert day numbers to month/day.
Calculate Clock Hand Angle
Quickly find the angle between the hour hand and minute hand. Calculate clock angles precisely.
Set Clock Hand Angle
Quickly print a list of all clock times with a specific hand angle. Find times matching exact angles.
Find a Specific Day
Quickly print all dates when a specific day happens. Find all occurrences of a weekday in a year.
Powerful Date & Time Calculators
Our comprehensive collection of date and time tools helps you work with calendar dates and clock times efficiently. Whether you need to convert dates to text, find specific days of the week, or calculate clock angles, our utilities provide accurate results instantly.
Why Use Our Date & Time Tools?
- Accurate calculations - All tools use precise algorithms for reliable results
- User-friendly interface - Simple, intuitive controls for quick operation
- Multiple formats supported - Works with various date and time formats
- No installation required - Runs completely in your browser
- 100% free - Access all tools without any cost
Common Use Cases
These date and time tools are invaluable for developers, project managers, event planners, historians, and anyone who works with dates and times regularly. Use them to:
- Schedule events and meetings
- Analyze time-based data
- Convert between date formats
- Calculate time differences
- Generate human-readable date strings
- Solve clock-related math problems