Regular Expressions 101

\ban ASCII word boundary

Character Class[0-2]?

?matches at most one character from the set below:

0-2one character from 0 (48₁₀) to 2 (50₁₀)

\da digit

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Character Class[0-5]

0-5one character from 0 (48₁₀) to 5 (53₁₀)

\da digit

\ban ASCII word boundary

Global pattern flags

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

\b[0-2]?\d:[0-5]\d\b