[tz] Number of active tz regions?

[Hank W.]

At any given time at least 38 different UTC offsets are in use in the officially inhabited parts of the world:

UTC-11
UTC-10
UTC-9:30
UTC-9
UTC-8
UTC-7
UTC-6
UTC-5
UTC-4:30
UTC-4
UTC-3:30 (November-March only)
UTC-3
UTC-2:30 (March-November only)
UTC-2
UTC-1
UTC
UTC+1
UTC+2
UTC+3
UTC+3:30 (September-March only)
UTC+4
UTC+4:30
UTC+5
UTC+5:30
UTC+5:45
UTC+6
UTC+6:30
UTC+7
UTC+8
UTC+8:45
UTC+9
UTC+9:30
UTC+10
UTC+10:30
UTC+11
UTC+11:30
UTC+12
UTC+12:45 (April-September only)
UTC+13
UTC+13:45 (September-April only)
UTC+14

Hank W.
Austin, Texas, U.S.A.

-----Original Message-----
From: tz-bounces at iana.org [mailto:tz-bounces at iana.org] On Behalf Of David Patte ?
Sent: Wednesday, July 17, 2013 02:54
To: tz at iana.org
Subject: [tz] Number of active tz regions?

I guess I could calculate it myself using the data that I have, but does anyone know off-hand how many tz regions are currently in use?