Regular Expressions 101

Non-Capturing Group(?:[01]\d|2[0123])

1st Alternative[01]\d

Character Class[01]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

\da digit

2nd Alternative2[0123]

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Character Class[0123]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

3the literal 3 (51₁₀ / 63₈ / 33₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Non-Capturing Group(?:[012345]\d)

Character Class[012345]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

3the literal 3 (51₁₀ / 63₈ / 33₁₆)

4the literal 4 (52₁₀ / 64₈ / 34₁₆)

5the literal 5 (53₁₀ / 65₈ / 35₁₆)

\da digit

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Non-Capturing Group(?:[012345]\d)

Character Class[012345]

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

3the literal 3 (51₁₀ / 63₈ / 33₁₆)

4the literal 4 (52₁₀ / 64₈ / 34₁₆)

5the literal 5 (53₁₀ / 65₈ / 35₁₆)

\da digit

Global pattern flags

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

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

(?:[01]\d|2[0123]):(?:[012345]\d):(?:[012345]\d)

New

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