Unix timestamps appear in nearly every programming environment, but each language exposes dates through a different API. Python uses datetime, JavaScript uses Date, SQL databases provide timestamp functions, and systems languages often work with epoch seconds through standard libraries. A copy-ready example reduces the time spent searching for syntax and helps you compare how each language represents the same instant.
GeoTimeTools’s Unix timestamp code generator supports Python, JavaScript, Go, SQL, PHP, Rust, Java, Ruby, and C. Enter a seconds or millisecond timestamp and choose a language. The snippet uses a concrete value, shows the UTC or ISO-friendly path where appropriate, and stays small enough to paste into a test, a REPL, a code comment, or documentation. Switch languages without losing the timestamp you entered.
These examples are intentionally practical rather than framework-specific. They focus on the core conversion from epoch time to a date, because that is the part that differs most between languages. Once you understand the standard-library version, you can adapt it to a web framework, ORM, data pipeline, or application service with confidence. The copy button keeps formatting intact and the tab controls work with a keyboard.
Seconds versus milliseconds in code
JavaScript Date expects milliseconds, while many Unix APIs return seconds. A common conversion is timestamp * 1000 before constructing a Date. Python, Go, and several server libraries often accept seconds directly. Confirm the expected unit in the function documentation instead of assuming it from the variable name.
UTC is the safest interchange format
When data crosses services, ISO 8601 or an explicit UTC timestamp is easier to debug than an unlabelled local date. Use the local representation for a user interface and the UTC representation for logs, APIs, storage, and comparisons between machines.