Category · 3 tools
Time & Date tools
Time is the most error-prone data type in software. These tools convert between epoch seconds and human dates, measure the gap between two dates, and compare a moment across time zones.
Date Difference Calculator
Calculate the exact days, weeks, months, years and business days between two dates.
Time Zone Converter
Convert a date and time across multiple time zones at once, with UTC offsets and day differences.
Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable dates and back, with live current time.
Questions about time & date tools
Are the time & date tools free to use?
Yes. All 3 tools in this category are free, need no account and have no usage limits. ToolzKit is funded by keeping the site cheap to run, not by gating features.
Does my data get uploaded anywhere?
Every tool in this category runs its processing in your browser using ordinary JavaScript. Your input is not sent to a server, and it is not written to storage when you leave the page.
Can I use these tools on a phone?
Yes. The layouts adapt to narrow screens, editors stack vertically instead of side by side, and copy buttons stay reachable without horizontal scrolling.
How do I find a tool quickly?
Press the forward slash key, or Ctrl+K on Windows and Cmd+K on macOS, to open the command palette from any page. Type a few letters and press Enter.
Related categories
- CalculatorsPercentages, units and everyday maths
- DeveloperFormat, validate and inspect code and data
- ProductivityEveryday desk utilities
Or see every tool across all 12 categories.