10 vs 13 digits
10 digits usually indicate seconds; 13 digits usually indicate milliseconds.
Convertisseur timestamp millisecondes
Convertissez les timestamps 13 chiffres et comparez-les aux secondes Unix 10 chiffres.
Probleme resolu
Utile pour Date.now(), logs frontend, evenements analytics et champs stockes en millisecondes.
Mode d emploi
- Copy the 13-digit timestamp from JavaScript, logs, or analytics data.
- Paste it into the main timestamp tool.
- Compare the millisecond and second outputs.
- Copy the correct unit for the target API or report.
Milliseconds example
1700000000000 1700000000
1700000000000 milliseconds equals 1700000000 seconds when divided by 1000.
If a date appears far in the future, a millisecond value may have been treated as seconds.
Erreurs frequentes
Dividing twice
Do not divide by 1000 again if the tool already gives seconds output.
Unexpected future dates
Large values can produce unrealistic dates if interpreted with the wrong unit.
FAQ timestamp millisecondes
What does Date.now() return?
JavaScript Date.now() returns milliseconds since the Unix epoch.
How do I convert milliseconds to seconds?
Divide the millisecond timestamp by 1000, or copy the seconds output from the tool.
Why are there 13 digits?
Milliseconds need three extra digits compared with Unix seconds.
Guides timestamp lies
Timestamp Unix vers date
Convertissez des secondes 10 chiffres ou millisecondes 13 chiffres en date locale et UTC lisible.
Date vers timestamp Unix
Convertissez une date lisible en secondes et millisecondes Unix pour API, logs et bases de donnees.
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