Regular Expressions 101

Explanation

Pro

Group 1([0-9]{1,2}:?(?:[0-9]{2})?)

Character Class[0-9]{1,2}

{1,2}matches between 1 and 2 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

:?optionally matches the literal : (58₁₀ / 72₈ / 3A₁₆)

Non-Capturing Group(?:[0-9]{2})?

?repeats the group contents below at most once:

Character Class[0-9]{2}

{2}matches exactly 2 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 2([0-9]{1,2}:?(?:[0-9]{2})?)

Character Class[0-9]{1,2}

{1,2}matches between 1 and 2 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

:?optionally matches the literal : (58₁₀ / 72₈ / 3A₁₆)

Non-Capturing Group(?:[0-9]{2})?

?repeats the group contents below at most once:

Character Class[0-9]{2}

{2}matches exactly 2 characters from the set below:

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\sany whitespace character

Group 3(AM|PM)

1st AlternativeAM

AMthe literal text AM (case insensitive)

2nd AlternativePM

PMthe literal text PM (case insensitive)

Global pattern flags

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

g modifier: global. Finds all matches instead of stopping after the first

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

([0-9]{1,2}:?(?:[0-9]{2})?)-([0-9]{1,2}:?(?:[0-9]{2})?)\s(AM|PM)

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