-rob
that won't work in general, as time zones may be on
sub-hour intervals (also i suppose it's possible that the time
package might account for leap seconds at some point).
rob's approach works great.
some time zones are not a whole multiple of hours from UTC.
(e.g. afghanistan is UTC+4:30)
thus taking time.Seconds and rounding down to the nearest whole hour
may not round down to the correct local hour.