Unix Timestamp in Java

Look up the current epoch time and convert between Unix seconds and UTC dates in Java.

Get the current timestamp

import java.time.Instant;

class Main {
    public static void main(String[] args) {
        System.out.println(Instant.now().getEpochSecond());
    }
}

Timestamp to date

import java.time.Instant;

class Main {
    public static void main(String[] args) {
        System.out.println(Instant.ofEpochSecond(1_700_000_000L));
    }
}

Date to timestamp

import java.time.Instant;

class Main {
    public static void main(String[] args) {
        System.out.println(Instant.parse("2023-11-14T22:13:20Z").getEpochSecond());
    }
}

Open 1700000000 in the converter

Current Unix time

Seconds—

Milliseconds—

UTC: —
My time zone: —

Official reference ↗

Free to use. Your input stays in this browser.

How to use it

Copy the current-time example into your Java environment to read Unix seconds.
Run the second example to display 1700000000 as a UTC date.
Run the last example to convert that date back into seconds.

Instant keeps seconds and a nanosecond adjustment. System.currentTimeMillis() and Instant.toEpochMilli() return milliseconds, so check the API before exchanging values.