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Articles on timestamps, cron expressions, and date formats.
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Cron Expression Cheat Sheet
A complete reference for cron expression syntax: all 5 fields, special characters, 20 common patterns, and platform differences for GitHub Actions, Kubernetes, Vercel, and crontab.
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- discord timestamps reference
Discord Timestamp Formats Explained
A complete guide to Discord's 9 timestamp formats: the <t:UNIX:F> syntax, how each token looks, why Discord auto-converts timezones, and practical usage for events and countdowns.
- iso 8601 unix reference
ISO 8601 vs Unix Timestamp: When to Use Which
ISO 8601 and Unix timestamps compared: readability, storage, sortability, timezone handling, and parsing — with conversion examples in JavaScript, Python, and Go.
- unix timestamps reference
What Is a Unix Timestamp?
Unix timestamps count seconds since January 1, 1970 UTC. Covers why 1970 was chosen, seconds vs milliseconds, and how to use Unix time in JavaScript, Python, Go, and SQL.
- unix security systems
The Year 2038 Problem
On January 19, 2038, 32-bit Unix timestamps overflow. Explains why it happens, which systems are at risk, the state of 64-bit migration, and what developers should do today.