Regular Expressions 101

Group 1([01]?[0-9]+:?[0-9]*(?:[AP]M)?)

Character Class[01]?

?matches at most one character from the set below:

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

Character Class[0-9]+

+matches at least one character from the set below:

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

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

Character Class[0-9]*

*matches any number of characters from the set below:

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

Non-Capturing Group(?:[AP]M)?

?repeats the group contents below at most once:

Character Class[AP]

Athe literal A (65₁₀ / 101₈ / 41₁₆) (case sensitive)

Pthe literal P (80₁₀ / 120₈ / 50₁₆) (case sensitive)

Mthe literal M (77₁₀ / 115₈ / 4D₁₆) (case sensitive)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 2([01]?[0-9]+:?[0-9]*(?:[AP]M)?)

Character Class[01]?

?matches at most one character from the set below:

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

Character Class[0-9]+

+matches at least one character from the set below:

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

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

Character Class[0-9]*

*matches any number of characters from the set below:

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

Non-Capturing Group(?:[AP]M)?

?repeats the group contents below at most once:

Character Class[AP]

Athe literal A (65₁₀ / 101₈ / 41₁₆) (case sensitive)

Pthe literal P (80₁₀ / 120₈ / 50₁₆) (case sensitive)

Mthe literal M (77₁₀ / 115₈ / 4D₁₆) (case sensitive)

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

([01]?[0-9]+:?[0-9]*(?:[AP]M)?)-([01]?[0-9]+:?[0-9]*(?:[AP]M)?)

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