power menu, redshift, polybar

.config/polybar/scripts/info-timezone/info-timezone.sh

@@ -0,0 +1,35 @@
+#!/bin/sh
+
+# Change format here. see `man date` for format controls.
+FORMAT="%I:%M %p"
+
+# Add the timezones of your choice. see `timedatectl list-timezones`.
+set -- "UTC-0" "Australia/Sydney" "Asia/Kolkata" "America/Chicago"
+
+TIMEZONES_LENGTH=$#
+current_idx=1
+
+print_date() {
+  TZ=${current_timezone:?} date +"${FORMAT}" | echo "${current_timezone:?}: $(cat -)"
+}
+
+update_current_timezone() {
+  current_idx=$(($((current_idx+1)) % $(("$TIMEZONES_LENGTH"+1))))
+  if [ $current_idx -lt 1 ]; then
+    current_idx=1
+  fi
+}
+
+click() {
+  update_current_timezone
+  print_date
+}
+
+trap "click" USR1
+
+while true; do
+  eval "current_timezone=\${$current_idx}"
+  print_date current_timezone
+  sleep 5 &
+  wait
+done