Regular Expressions 101

Explanation

Pro

Group 1([+-]?\s?\d{2}:\d{2})

Character Class[+-]?

?matches at most one character from the set below:

+the literal + (43₁₀ / 53₈ / 2B₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\s?optionally matches any whitespace character

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

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\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.

25 tokens

([+-]?\s?\d{2}:\d{2})

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    GMT-05:00 Eastern Time(Toronto)
    (GMT - 06:00) Central Time(US, Canada)
    GMT-10:00 Hawaii - Aleutian Standard Time(Honolulu)