wherefive.py

#!/usr/bin/python
import os
import datetime
import pytz

now = datetime.datetime.now(datetime.UTC)

sz = set()
for tz in pytz.all_timezones:
    zone = pytz.timezone(tz)
    local = now.astimezone(zone)
    if local.hour != 17: continue
    z = local.strftime("%Z")
    if z in sz: continue
    sz.add(z)
    print(f"{local.strftime('%H:%M %Z'):10} - {zone}")