About TimeTools
Simple for everyone. Powerful for developers.
TimeTools started from a simple frustration: looking up what a Unix timestamp means should take less than two seconds. No searching, no clicking through forms, no waiting. Paste a value, get an answer.
It is designed to be approachable for anyone who just needs a quick answer — the current time around the world, what day of the year it is, how old someone is — while offering deeper workflows for engineers working with logs, databases, APIs, and distributed systems: timeline comparison, timestamp detection inside JSON, JWT inspection, and conversion across every format you are likely to run into.
The goal is to be the time and date tool you keep open all day — useful enough for a backend developer debugging a production incident, and plain enough for anyone who just wants to know what an “epoch” is. It is actively developed, and new tools are added regularly.
How it works
Every tool on this site runs entirely in your browser. There is no conversion server, no account system, and no database on the other end. When you paste a timestamp, your device does all the work and the result appears instantly — because there is nothing to wait for. The output covers every stack — Go, Python, Java, .NET, PHP, JavaScript — so you’re never stuck copy-pasting from a language-specific converter.
We also try to be shareable by default. Most tools encode your input in the URL so you can bookmark a result or send it to a colleague with a single copy-paste of the address bar. Those parameters aren’t used for tracking or analytics — they just make the link work.
Privacy, in plain terms
- ✓No cookies — none, zero, not even a session cookie.
- ✓No data is sent to any server. Timestamps, dates, and JWTs you paste are never transmitted.
- ✓No account, no sign-up, no email required.
- ✓No advertising or behavioural tracking.
- ✓Your browser's localStorage is used only to remember your own preferences — hidden rows, pinned tools, theme — and only on your device.
Vercel (our hosting provider) may record standard web-server metadata — IP address, path, and timestamp — in edge logs as part of normal infrastructure operation. We do not access or analyse these logs for user tracking. Full privacy policy →
Linking to TimeTools
Most tools read their input from the page address, so you can build links that open with a result already loaded — handy for bug reports, runbooks, documentation, or sending a colleague exactly what you see. A machine-readable version of this reference lives at /llms.txt.
- Epoch Converter
- value
- Unix timestamp in seconds, milliseconds, microseconds, or nanoseconds (unit auto-detected), or a date string such as ISO 8601
https://timetools.dev/?value=1782558101 - Date → Epoch
- value
- a date or datetime string — ISO 8601, RFC 3339, SQL datetime, or a named-month date like “March 15, 2026”
https://timetools.dev/date-to-epoch?value=2026-07-02T14%3A00%3A00Z - Add Time to Timestamp
- value
- the base Unix timestamp to shift (any unit, auto-detected)
- shift
- signed amount to add, e.g. -90
- unit
- one of seconds, minutes, hours, days
https://timetools.dev/add-to-timestamp?value=1782558101&shift=-90&unit=minutes - Unix Countdown
- t
- target Unix timestamp in seconds
- label
- optional display label for the countdown
https://timetools.dev/unix-countdown?t=1830297600&label=Launch - Compare Timestamps
- t1, t2, …
- one timestamp per row (any supported format)
- l1, l2, …
- optional label for the matching row
- tz
- IANA timezone for the local-time column, e.g. Europe/Warsaw
https://timetools.dev/compare?t1=1782558101&l1=Alert&t2=1782562100&l2=Resolved&tz=UTC - World Clock
- tz
- comma-separated IANA timezones, in display order
https://timetools.dev/world-clock?tz=UTC,America%2FNew_York,Asia%2FTokyo - Timezone Converter
- t
- the timestamp or date string to convert
- tz
- comma-separated IANA timezones to show
https://timetools.dev/timezone-converter?t=1782558101&tz=UTC,Europe%2FLondon - DST Transitions
- tz
- a single IANA timezone
https://timetools.dev/dst-transitions?tz=America%2FNew_York - Cron Expression Parser
- expr
- a URL-encoded cron expression (5 or 6 fields)
- tz
- IANA timezone for the next-run times
https://timetools.dev/cron?expr=0+9+*+*+1-5&tz=UTC - Date Difference
- start
- start date, YYYY-MM-DD
- end
- end date, YYYY-MM-DD
- includeEnd
- set to 1 to count the end date as a full day
https://timetools.dev/date-difference?start=2026-01-01&end=2026-07-07&includeEnd=1 - Business Days Counter
- start
- start date, YYYY-MM-DD
- end
- end date, YYYY-MM-DD
- includeEnd
- set to 1 to count the end date as a full day
https://timetools.dev/business-days?start=2026-01-01&end=2026-07-07&includeEnd=1 - Add / Subtract Time
- value
- the base date, YYYY-MM-DD
- shift
- signed amount to add, e.g. -30
- unit
- one of days, weeks, months, years
https://timetools.dev/add-time?value=2026-07-07&shift=30&unit=days - ISO 8601 Duration Parser
- value
- an ISO 8601 duration string, e.g. P1DT2H30M
https://timetools.dev/iso8601-duration?value=P1DT2H30M - Seconds to Human
- value
- a number of seconds
https://timetools.dev/seconds-to-human?value=86400 - Discord Timestamp
- t
- the target Unix timestamp in seconds
- tz
- IANA timezone the entered wall-clock time belongs to, e.g. America/New_York
https://timetools.dev/discord-timestamp?t=1782558101&tz=America%2FNew_York - .NET Ticks Converter
- value
- a .NET DateTime.Ticks value
https://timetools.dev/dotnet-ticks?value=638712345678901234 - FILETIME Converter
- value
- a Windows FILETIME value
https://timetools.dev/windows-filetime?value=133795932000000000 - Excel Date Converter
- value
- an Excel date serial number
https://timetools.dev/excel-date?value=46204.5 - Cocoa Timestamp Converter
- value
- an Apple Cocoa / Core Foundation timestamp (seconds since 2001-01-01)
https://timetools.dev/cocoa-timestamp?value=804700800 - NTP Timestamp Converter
- value
- an NTP timestamp (seconds since 1900-01-01)
https://timetools.dev/ntp-timestamp?value=3990211200
Free, and staying that way
TimeTools is free to use with no rate limits, paywalls, or ads. If that ever changes, we will say so clearly rather than hiding it behind a terms update.
TimeTools is an independent project, built and maintained by a single software engineer. The goal is the best possible experience for working with time-related data — while staying approachable for anyone. Have an idea or hit a bug? Send feedback →