epochkit

All tools

Every timestamp tool epochkit offers — free, instant, and built for developers.

All timestamp tools

Unix Converter Convert Unix timestamps to readable dates and back, with 9-language code snippets ISO 8601 Converter Convert between ISO 8601 variants (extended, basic, week, ordinal) and Unix timestamps Discord Timestamp Generate <t:UNIX:F> syntax for Discord messages — all 9 formats with live preview Slack Timestamp Build <!date^UNIX^TOKEN|fallback> mrkdwn syntax for Slack with a visual token builder Cron Expression Generator Generate and explain cron expressions with a visual builder, presets, and platform snippets YouTube Timestamp Create timestamped YouTube links and embed codes — supports bulk generation from URL lists Timezone Converter View a moment across up to 6 IANA timezones simultaneously — DST-aware, sessions saved

Timezone conversions

Common cron schedules

What epochkit does

epochkit is a focused timestamp toolkit for developers. Every tool is designed around a single workflow: paste in a value, get the output you need, copy and move on. No accounts, no paywalls.

The Unix Converter and ISO 8601 Converter cover the core date interchange formats used in APIs, databases, and logs. The Discord and Slack tools handle platform-specific timestamp syntax so your messages display the right time for every recipient, in their own timezone. The Cron Expression Generator lets you build and explain scheduling expressions with a visual builder and export them to GitHub Actions, Kubernetes, Vercel, and crontab. The YouTube Timestamp tool generates deep-link URLs and embeds with precise start and end times. And the Timezone Converter shows a single moment across up to 6 IANA timezones simultaneously — useful for scheduling across distributed teams.