Check current time around the world with our live world clock. Free UTC time converter, timezone calculator, age calculator, and holiday calendar tools.
DatetimeDateTime.app is a browser-based date and time toolkit that helps developers, analysts, and everyday users work with time zones, timestamps, and date conversions more efficiently. It provides simple yet powerful tools to manipulate and convert datetime formats across different locations and systems.
Website: https://datetime.app
Purpose: Simplify complex time zone conversions and timestamp formatting
Free & browser-based: No sign-up or installation required
Time Zone Converter
Convert time between any two time zones instantly.
UNIX Timestamp Converter
Convert between Unix time and human-readable formats.
Current Time Viewer
See current local time in multiple regions simultaneously.
ISO 8601 Formatter
Easily generate or parse ISO-standard datetime strings.
Live Time Preview
Real-time updates as you change time or zone inputs.
User-Friendly Interface
Clean, minimal UI for quick and distraction-free use.
Open the site in any browser.
Select a tool (e.g. “Convert Time Zones”).
Input a date/time, choose source and target time zones.
Instantly view the result with optional formatting.
Everything runs locally in the browser, ensuring speed and privacy.
Developers & engineers working with backend systems, cron jobs, or APIs
Product managers and remote teams scheduling across time zones
Data analysts working with logs, timestamps, or datasets
Anyone confused by time zones or needing a quick converter
Frequently shared among developers for its simplicity and precision
Highly appreciated on platforms like Reddit, Hacker News, and dev forums
Known as a lightweight alternative to tools like timeanddate.com
Used worldwide due to its timezone accuracy and real-time sync
| Platform | Focus | Key Differences |
|---|---|---|
| timeanddate.com | World clocks, calendars, event timers | More complex, ad-heavy, broader scope |
| worldtimebuddy.com | Time zone comparison | Requires login for some features |
| Epoch Converter | Unix ↔ Human time | More technical, fewer UI enhancements |
| Every Time Zone | Visual timeline across time zones | Visual focus, limited feature set |
DateTime.app is a fast, clean, and reliable toolkit for working with dates, time zones, and timestamps. Whether you’re syncing international meetings or debugging API logs, it’s a simple yet powerful tool worth bookmarking.
