diff --git a/shime b/shime
new file mode 100755
index 0000000..256f9f4
--- /dev/null
+++ b/shime
@@ -0,0 +1,52 @@
+#!/bin/sh
+
+case $0 in
+    *"timer"*)
+        [ $# -ne 2 ] && printf "specify minutes and \
+            seconds\n" && exit 1
+        sleep $(($1 * 60 + $2))
+        printf "your timer is done\a\n"
+        exit 0
+        ;;
+    *"alarm"*)
+        [ $# -ne 1 ] && printf "specify time\n" && exit 1
+        ttw=$(($(date +%s --date="$1 tomorrow") - $(date +%s)))
+        sleep $ttw
+        printf "your alarm is done\a\n"
+        exit 0
+        ;;
+    *"tomato"*)
+        [ $# -ne 2 ] && \
+            printf "specify work and rest time\n" && exit 1
+        counter=0
+        while true; do
+            printf "start work cycle %s\a\n" $(($counter + 1))
+            sleep $(($1 * 60))
+            printf "start rest cycle %s\a\n" $(($counter + 1))
+            sleep $(($2 * 60))
+            counter=$(($counter + 1))
+        done
+        exit 0
+        ;;
+    *"stopwatch"*)
+        now=$(date +%s)
+        read var
+        printf "%s\n" $(($(date +%s) - $now))
+        exit 0
+        ;;
+    *"verbosewatch"*)
+        min=59
+        sec=55
+        while true; do
+            printf "%02d:%02d\r" $min $sec
+            sleep 1
+            sec=$(($sec + 1))
+            [ $sec -eq 60 ] && min=$(($min + 1)) && sec=0
+        done
+        exit 0
+        ;;
+    *)
+        printf "unknown invocation\n"
+        exit 2
+        ;;
+esac