What is the regex for unix timestamp?

The regex pattern for unix timestamp is `^\d{10}(?:\.\d{1,6})?$`. This pattern validates unix timestamp in seconds (10 digits) with optional microseconds.

How do I use this regex in JavaScript?

In JavaScript, create the regex with `const regex = /^\d{10}(?:\.\d{1,6})?$/;` and test with `regex.test(yourValue)`. It returns `true` if the value matches.

How do I use this regex in Python?

In Python, use `import re; re.match(r'^\d{10}(?:\.\d{1,6})?$', value)`. The raw string prefix (`r`) prevents Python from interpreting backslashes as escape characters.

Is this regex case-sensitive?

By default, yes. To make it case-insensitive, add the `i` flag in JavaScript (`/^\d{10}(?:\.\d{1,6})?$/i`) or use `re.IGNORECASE` in Python.

Regex for Unix Timestamp

Regex Pattern

^\d{10}(?:\.\d{1,6})?$

Unix timestamp in seconds (10 digits) with optional microseconds

Quick Answer

The regex pattern for unix timestamp is `^\d{10}(?:\.\d{1,6})?$`. Unix timestamp in seconds (10 digits) with optional microseconds. This works in JavaScript, Python, Ruby, PHP, Java, and most regex engines that support PCRE syntax.

Test Examples

Input	Result
1681234567	✓ Matches
1609459200	✓ Matches
1681234567.123456	✓ Matches
168123456	✗ No match
16812345678901	✗ No match
notanumber	✗ No match

Code Examples

javascript

const regex = /^\d{10}(?:\.\d{1,6})?$/;
const isValid = regex.test(value);

python

import re
pattern = r'^\d{10}(?:\.\d{1,6})?$'
if re.match(pattern, value):
    print("valid")

ruby

pattern = /^\d{10}(?:\.\d{1,6})?$/
if value =~ pattern
  puts "valid"
end

php

if (preg_match('/^\d{10}(?:\.\d{1,6})?$/', $value)) {
    echo "valid";
}

java

String pattern = "^\\d{10}(?:\\.\\d{1,6})?$";
boolean isValid = value.matches(pattern);

Frequently Asked Questions

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