10-Digit Unix Timestamp – Convert Seconds to Date

Local only

Explain the common 10-digit Unix-seconds form with a real converter example.

Multi-row timestamp converter

Compare timestamps and ISO 8601 dates. Inputs without an offset use UTC.

Row 1Timestamp -> Date
11/14/2023, 10:13:20 PM
ISO: 2023-11-14T22:13:20.000ZSeconds: 1700000000Milliseconds: 1700000000000

Unix timestamp units

Is a 10-digit Unix timestamp seconds or milliseconds?

Ten-digit Unix timestamps commonly represent elapsed seconds since 1970-01-01T00:00:00Z. VetaTool treats values below the millisecond threshold as seconds and shows both units so you can verify the interpretation. This tool is free to use. No account or payment is required.

Last updated

What you can do here

  • Unix seconds and milliseconds conversion
  • ISO 8601 parsing
  • Explicit timezone interpretation
  • Fractional and negative Unix timestamps
  • Browser-local processing

Steps

  1. Paste the 10-digit value into Timestamp to Date.
  2. Check the ISO detail for the UTC instant.
  3. Compare the displayed Seconds and Milliseconds values before copying to another system.

Digit count is a useful clue, not the definition

Current Unix seconds are typically around ten digits, while current Unix milliseconds are typically around thirteen digits.

VetaTool uses the numeric magnitude to decide which unit to apply, then exposes both representations for confirmation.

10-digit timestamp example

1700000000 is interpreted as seconds.

Timestamp

1700000000

UTC details

ISO: 2023-11-14T22:13:20.000Z
Seconds: 1700000000
Milliseconds: 1700000000000

Common questions

Frequently asked questions

Are all 10-digit timestamps seconds?

They commonly are for modern Unix time, but the actual unit should come from the producing system's contract.

Does the converter use my local timezone for the ISO value?

No. The ISO detail is UTC.

Recommended next steps

13-Digit Unix TimestampInterpret common 13-digit Unix values as milliseconds instead of seconds.Unix Timestamp Seconds vs MillisecondsCompare timestamp units and avoid common conversion mistakes.Unix Timestamp Converter OnlineConvert Unix seconds, milliseconds, ISO 8601 dates, and timezone-aware values locally.

Debugging a specific Timestamp issue? Browse Timestamp troubleshooting.