Regular Expressions 101

Explanation
Pro

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)

Character Class[AP]?

?matches at most one character from the set below:

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

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

M?optionally matches the 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)

Character Class[AP]?

?matches at most one character from the set below:

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

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

M?optionally matches the literal M (77₁₀ / 115₈ / 4D₁₆) (case sensitive)

Global pattern flags

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

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

8-8:30AM MON TUES THURS FRI
8-10:30AM MON TUES THURS FRI
8:30AM-10:30AM MON TUES THURS FRI
10:30AM-11:30AM MON TUES THURS FRI
10:30AM-11:30AM MON TUES THURS FRI
8AM-8:30AM
10-11PM

Substitution

8-8:30AM MON TUES THURS FRI
8-10:30AM MON TUES THURS FRI
8:30AM-10:30AM MON TUES THURS FRI
10:30AM-11:30AM MON TUES THURS FRI
10:30AM-11:30AM MON TUES THURS FRI
8AM-8:30AM
10-11PM