Date / Time

ArrayKit's Date / Time tools handle the small but fiddly jobs that come up constantly in development and ops work. Use the Unix Timestamp Converter to translate epoch values into readable local and UTC dates (and back again), reach for the UUID Generator when you need one or many random UUID v4 identifiers, and lean on the Cron Explainer to decode a crontab expression and preview its next run times before you ship a scheduled job. These tools are built for developers, sysadmins, data engineers, and anyone debugging logs, APIs, or schedulers. Every conversion and calculation runs entirely in your browser, so timestamps, IDs, and cron strings are processed locally and never leave your device. Open a tool, paste your value, and get an answer instantly without any tracking.

• Unix Timestamp Converter — Convert between Unix timestamps and human dates (local + UTC).
• UUID Generator — Generate one or many random UUID v4 values.
• Cron Explainer — Explain a cron expression and preview its next run times.

Frequently asked questions

What can I do with these Date / Time tools?

You can convert Unix timestamps to and from human-readable local and UTC dates, generate one or many random UUID v4 values, and explain a cron expression while previewing its upcoming run times. They cover the most common date, time, and scheduling tasks developers face.

Are these Date / Time tools safe to use with sensitive data?

Yes. Every tool runs entirely in your browser, so your timestamps, identifiers, and cron expressions are processed locally and never leave your device. Nothing is uploaded to a server, and there is no tracking of what you enter.

Do the Date / Time tools work offline?

Yes. Because all processing happens locally in your browser, the timestamp converter, UUID generator, and cron explainer keep working even without an internet connection once the page has loaded.

How accurate is the Unix Timestamp Converter?

It converts between Unix epoch seconds and calendar dates, showing both your local time and UTC so you can verify time zone handling. This makes it reliable for debugging logs, API responses, and database records where timestamps need to line up exactly.

Are the generated UUIDs unique and random?

The UUID Generator produces random UUID v4 values, which are designed to be globally unique for practical use as identifiers. You can generate a single value or a batch at once, all created locally in your browser.

Can the Cron Explainer show when my job will run?

Yes. Paste a cron expression and the explainer describes what the schedule means in plain language and previews the next run times, so you can confirm a crontab entry behaves as expected before deploying it.