Generate Invalid Calendar Dates
The Generate Invalid Calendar Dates Tool helps you create lists of impossible or malformed dates for testing and validation purposes. You can generate dates like 2024-02-30, 2023-13-01, or 00/00/0000, choose…
Time Tools
Explore powerful time tools to convert units, find overlaps, generate dates, and tweak clock values. Everything you need to work with time, fast and easy.
GoGenerate Invalid Calendar Dates
Generate Valid Calendar Dates
The Generate Valid Calendar Dates Tool creates a complete list of valid calendar dates between any two years. You can customize the output format, pick the interval (e.g., every 1…
Generate Valid Clock Times
The Generate Valid Clock Times Tool creates a complete list of valid HH:MM formatted times based on your selected format and step interval. Whether you need a dropdown list for…
Generate Valid Clock Times
The Generate Valid Clock Times Tool creates a list of all valid clock times based on your selected format and step size. Choose between 24-hour or 12-hour AM/PM format, customize…
Change Clock Scale
The Change Clock Scale Tool lets you convert clock times between different formats and scales instantly. Whether you’re working with 24-hour time, 12-hour AM/PM, decimal time, percent-of-day, degrees on a…
Shift Clock Time
The Shift Clock Time Tool lets you adjust a list of clock times by a specific number of minutes forward or backward. Whether you’re calculating time zone offsets, modifying schedules,…
Invert Clock Time
The Invert Clock Time Tool takes a list of HH:MM formatted times and returns their inverted counterparts subtracting each from 24 hours. For example, 01:00 becomes 23:00, and 06:30 becomes…
Reverse Clock Time
The Reverse Clock Time Tool takes any HH:MM formatted time and outputs its reverse on the 24-hour clock. For example, 03:15 becomes 20:45, and 12:00 becomes 12:00. This is perfect…
Generate Random Date Intervals
Need realistic test data for date-based systems? The Generate Random Date Intervals Tool creates flexible, randomized date ranges with options to shuffle order, vary lengths, and allow overlaps. It’s perfect…
Generate Non-overlapping Dates
The Generate Non-overlapping Dates Tool lets you create clean, sequential date ranges that never overlap. Whether you’re testing timeline logic, building schedules, or generating mock calendar data, this tool ensures…