West Bank and the Gaza Strip will have different time zones

[Paul Eggert]

After looking into the matter some more,
my impression is that in practice East Jerusalem clocks are
in an unsettled state, in that some are set to Israeli time
and others to Palestianian time.  For example, here's a
story in Roger Friedland and Richard Hecht's book _To Rule Jerusalem_,
(University of Calfornia Press, 2000), page 289:

   We arrived for our appointment at Nusseibeh's office promptly
   at 9:30 on Monday 22 May, 1984.  The big clock in his office
   showed 8:30.  We checked our watches, thinking the electricity
   had stopped functioning in East Jerusalem or perhaps his clock
   was broken.  The clocks were working fine.  Israel had just
   introduced daylight saving time.  Nusseibeh's office, like all
   other Palestinian institutions, refused to set its clocks forward.

and another story about the spring 1989 transition (page 327):

   In East Jerusalem, policemen would ask Palestinians for the time.
   If they answered according to Palestinian time, their watches
   were sometimes seized and smashed with billy clubs.  One
   Palestinian from Silwan who answered, "Four o'clock" was made
   to stand in the street for an hour until it was 4:00 P.M.
   according to Israeli clocks.

If the official time in East Jerusalem is Israeli, but many
people observe Palestinian time, it would be problematic
to use it as the canonical location for the West Bank daylight-saving
rules.  It might be better to pick the most populous location in
the West Bank where there is a reasonable working consensus
about the time of day.