Regular Expressions 101

Group 1([1|2]\d{3})

Character Class[1|2]

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

|the literal | (124₁₀ / 174₈ / 7C₁₆)

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

\d{3}a Unicode decimal digit, repeated exactly 3 times

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 2((0[1-9])|(1[0-2]))

1st Alternative(0[1-9])

Group 3(0[1-9])

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

2nd Alternative(1[0-2])

Group 4(1[0-2])

1the literal 1 (49₁₀ / 61₈ / 31₁₆)

Character Class[0-2]

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

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Group 5([0-2][1-9]|(3[0-1]))

1st Alternative[0-2][1-9]

Character Class[0-2]

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

Character Class[1-9]

1-9one character from 1 (49₁₀) to 9 (57₁₀)

2nd Alternative(3[0-1])

Group 6(3[0-1])

3the literal 3 (51₁₀ / 63₈ / 33₁₆)

Character Class[0-1]

0-1one character from 0 (48₁₀) to 1 (49₁₀)

Tthe literal T (84₁₀ / 124₈ / 54₁₆) (case sensitive)

Group 7(([0-1]\d)|(2[0-3]))

1st Alternative([0-1]\d)

Group 8([0-1]\d)

Character Class[0-1]

0-1one character from 0 (48₁₀) to 1 (49₁₀)

\da Unicode decimal digit

2nd Alternative(2[0-3])

Group 9(2[0-3])

2the literal 2 (50₁₀ / 62₈ / 32₁₆)

Character Class[0-3]

0-3one character from 0 (48₁₀) to 3 (51₁₀)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group 10([0-5][0-9])

Character Class[0-5]

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

Character Class[0-9]

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group 11([0-5][0-9])

Global pattern flags

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

([1|2]\d{3})\/((0[1-9])|(1[0-2]))\/([0-2][1-9]|(3[0-1]))T(([0-1]\d)|(2[0-3])):([0-5][0-9]):([0-5][0-9])

New

1900/01/01T05:59:00
2000/12/12T11:58:01
2000/12/12T12:48:59
2000/04/12T23:48:59