Now using dotter

i3/i3blocks/calendar

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+DATEFMT=${DATEFMT:-"+%a %d.%m.%Y %H:%M:%S"}
+SHORTFMT=${SHORTFMT:-"+%H:%M:%S"}
+
+OPTIND=1
+while getopts ":f:" opt; do
+    case $opt in
+        f) DATEFMT="$OPTARG" ;;
+        \?)
+           echo "Invalid option: -$OPTARG" >&2
+           exit 1
+            ;;
+        :)
+            echo "Option -$OPTARG requires an argument." >&2
+            exit 1
+            ;;
+    esac
+done
+
+case "$BLOCK_BUTTON" in
+  1|2|3)
+	# Try to focus Thunderbird
+	i3-msg -q [class="Thunderbird" instance="Mail"] focus
+	if [ $? == 2 ]
+	then
+		# Open Thunderbird if it was not open
+		i3-msg -q "exec thunderbird -mail -calendar"
+	else
+		# Open calendar
+		xdotool key --clearmodifiers --delay 5 ctrl+shift+c
+	fi
+esac
+echo "$LABEL$(date "$DATEFMT")"
+echo "$LABEL$(date "$SHORTFMT")"