Displays the current UTC in the menu bar, and shows other (configurable) times in the drop down

utcclock.1s.sh

#!/bin/bash

# Display UTC in the menubar, and one or more additional zones in the drop down.
# The current format (HH:MM:SS) works best with a one second refresh, or alter
# the format and refresh rate to taste.
#
# <bitbar.title>World Clock</bitbar.title>
# <bitbar.version>v1.0</bitbar.version>
# <bitbar.author>Adam Snodgrass</bitbar.author>
# <bitbar.author.github>asnodgrass</bitbar.author.github>
# <bitbar.desc>Display current UTC time in the menu bar, with various timezones in the drop-down menu</bitbar.desc>
# <bitbar.image>https://cloud.githubusercontent.com/assets/6187908/12207887/464ff8b2-b617-11e5-9d61-787eed228552.png</bitbar.image>

ZONES="Europe/Dublin America/New_York US/Mountain US/Pacific"
date -u +'%H:%M UTC'
echo '---'
for zone in $ZONES; do
    echo "$(TZ=$zone date +'%H:%M %z') $zone"
done