Unix Timestamp by Language
Copy-ready code snippets for getting and converting Unix timestamps in your language. Each page covers seconds, milliseconds, and date parsing — no external libraries required where possible.
JavaScriptJavaScript's Date API works in milliseconds internally. Use Date.now() to get the current timestamp — divide by 1000 for seconds, or keep as-is for milliseconds.View snippets →PythonPython's time module gives you the current Unix timestamp as a float (seconds with decimal precision). Use int() to truncate to whole seconds.View snippets →JavaJava has two main ways to get Unix timestamps: the legacy System.currentTimeMillis() (milliseconds) and the modern java.time.Instant API (Java 8+, recommended).View snippets →PHPPHP's time() function returns the current Unix timestamp in seconds. For milliseconds, use microtime(). DateTime and Carbon are popular for date arithmetic.View snippets →GoGo's time package provides Unix() and UnixMilli() methods on time.Time. These are simple, idiomatic, and don't require external dependencies.View snippets →RubyRuby's Time class has built-in Unix timestamp support. Time.now.to_i gives you seconds; multiply by 1000 for milliseconds. Rails adds extra helpers via ActiveSupport.View snippets →RustRust's standard library provides SystemTime for Unix timestamps. For richer date handling, the chrono crate is the community standard.View snippets →SwiftSwift uses Date and TimeInterval (a Double of seconds) for timestamps. On Apple platforms, CFAbsoluteTime is relative to Jan 1 2001 — always use Date.timeIntervalSince1970 for Unix epoch compatibility.View snippets →KotlinKotlin on the JVM uses java.time.Instant (recommended, Java 8+) or System.currentTimeMillis(). In Kotlin Multiplatform, kotlinx-datetime provides a cross-platform API.View snippets →C#C# uses DateTimeOffset.UtcNow for timezone-safe timestamps. ToUnixTimeSeconds() and ToUnixTimeMilliseconds() give you Unix timestamps directly — no math required.View snippets →Bash / ShellBash can get Unix timestamps with the date command (GNU coreutils or macOS BSD). These one-liners are useful in scripts, cron jobs, and DevOps automation.View snippets →TypeScriptTypeScript uses the same Date API as JavaScript but adds static typing. Adding explicit type annotations prevents common timestamp bugs — like accidentally mixing seconds and milliseconds — at compile time.View snippets →CC's time() function has returned Unix timestamps since the 1970s — it's where the epoch convention originated. For sub-second precision, use clock_gettime() with CLOCK_REALTIME.View snippets →DartDart's DateTime class uses milliseconds internally — just like JavaScript. Use DateTime.now().millisecondsSinceEpoch for milliseconds, or integer-divide by 1000 for seconds. Flutter and server-side Dart both use the same API.View snippets →PowerShellPowerShell uses [DateTimeOffset]::UtcNow for Unix timestamps. The ToUnixTimeSeconds() and ToUnixTimeMilliseconds() methods are available in .NET 4.6+ and all PowerShell 5.1+ environments.View snippets →ElixirElixir uses DateTime and System.system_time/1 for Unix timestamps. Both return integers in the time unit you specify (:second, :millisecond, :microsecond) — making unit conversion explicit and clear.View snippets →
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