Regular Expressions 101

Group 1(\d{4})

\d{4}a digit, repeated exactly 4 times

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 2(\d{2})

\d{2}a digit, repeated exactly 2 times

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 3(\d{2})

\d{2}a digit, repeated exactly 2 times

Non-Capturing Group(?:[T ](\d{2}):(\d{2}):(\d{2})(?:\.(\d{0,7}))?(?:([+-])(\d{2}):(\d{2}))?)?

?repeats the group contents below at most once:

Character Class[T ]

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

the literal (32₁₀ / 40₈ / 20₁₆)

Group 4(\d{2})

\d{2}a digit, repeated exactly 2 times

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group 5(\d{2})

\d{2}a digit, repeated exactly 2 times

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group 6(\d{2})

\d{2}a digit, repeated exactly 2 times

Non-Capturing Group(?:\.(\d{0,7}))?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group 7(\d{0,7})

\d{0,7}a digit, repeated between 0 and 7 times

Non-Capturing Group(?:([+-])(\d{2}):(\d{2}))?

?repeats the group contents below at most once:

Group 8([+-])

Character Class[+-]

+the literal + (43₁₀ / 53₈ / 2B₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group 9(\d{2})

\d{2}a digit, repeated exactly 2 times

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group 10(\d{2})

\d{2}a digit, repeated exactly 2 times

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

(\d{4})-(\d{2})-(\d{2})(?:[T ](\d{2}):(\d{2}):(\d{2})(?:\.(\d{0,7}))?(?:([+-])(\d{2}):(\d{2}))?)?

New

2020-01-01T00:00:00.000000+04:07


2020-01-01 00:00:00.000000-04:07

2020-01-01 00:00:00.000000Z

2020-01-01

2020-01