Codeground AI time tools

Epoch & date converter

Convert Unix timestamps to human-readable dates and back — with full timezone support. Ideal for debugging APIs, log files, database fields and scheduled jobs.

The current Unix epoch time is
1781920993
Hover to pause · seconds since 1970-01-01 00:00:00 UTC
1

Epoch Human date

Paste any Unix timestamp — seconds, milliseconds, microseconds or nanoseconds.

Tip: tool auto-detects the unit. 1727210565 (s), 1727210565000 (ms), 1727210565000000 (µs) — all work.

2

Human date Epoch

Compose a date in any timezone — we'll output the matching Unix timestamp.

Understanding Unix timestamps and timezones

Unix is one of the most popular operating systems in the world. At its core it operates with a time system based on a Unix timestamp — the number of seconds that have passed since the Unix Epoch: January 1, 1970 (UTC).

What is a Unix timestamp?

A Unix timestamp is a number that represents the exact number of seconds since the Unix Epoch. The timestamp for January 1, 1970 00:00:00 UTC is 0.

Example — The Unix timestamp for September 24, 2024 14:42:45 UTC is 1727210565.

How does it work?

Unix timestamps count the number of seconds elapsed since the epoch. They are timezone-independent, which means the timestamp for the same moment is identical regardless of the timezone you're in. When converting to a human-readable form, however, you must apply the right timezone.

Translating to other languages

  • JavaScript · new Date(unixTimestamp * 1000)
  • Python · datetime.datetime.utcfromtimestamp(unixTimestamp)
  • PHP · date('Y-m-d H:i:s', unixTimestamp)
  • Java · new java.util.Date(unixTimestamp * 1000)
  • C# (.NET) · DateTimeOffset.FromUnixTimeSeconds(unixTimestamp).UtcDateTime
  • Ruby · Time.at(unixTimestamp)
  • Go · time.Unix(unixTimestamp, 0)
  • C++ · std::chrono::system_clock::from_time_t(unixTimestamp)
  • Swift · Date(timeIntervalSince1970: TimeInterval(unixTimestamp))
  • Kotlin · Date(unixTimestamp * 1000L)
  • Rust · UNIX_EPOCH + Duration::from_secs(unixTimestamp as u64)
  • R · as.POSIXct(unixTimestamp, origin="1970-01-01")
  • Shell · date -d @unixTimestamp
  • Elixir · DateTime.from_unix!(unixTimestamp)
  • Dart · DateTime.fromMillisecondsSinceEpoch(unixTimestamp * 1000, isUtc: true)
  • TypeScript · new Date(unixTimestamp * 1000)

Timezones & impact

Timezones represent geographical areas where local time is standardized. Unix timestamps are based on Coordinated Universal Time (UTC) and are not affected by timezones. When you display a timestamp to a user, however, you must apply their local timezone offset.

Example —GMT+05:30 is India Standard Time (IST). When it is 12:00 PM UTC, local time in IST is 5:30 PM.

About Codeground AI Epoch Converter

Codeground AI's epoch converter is a free online utility designed to help users convert epoch timestamps to human-readable dates and back. It simplifies time calculations, making it essential for developers and anyone working with time-related data.

With a clean interface, you can input epoch timestamps and instantly see the corresponding date and time across local, GMT, and any other IANA timezone.

Why use it

  • Accurate conversions — precise round-trip between epoch and human dates.
  • Intuitive interface — built for both engineers and casual users.
  • Real-time results — instant feedback as you type.
  • Bidirectional — epoch → date and date → epoch in one place.
  • Free & private — runs entirely in your browser, no sign-up required.