diff --git a/cron-reinstall-esp-idf.sh b/cron-reinstall-esp-idf.sh
index 82539ef..c1398a6 100644
--- a/cron-reinstall-esp-idf.sh
+++ b/cron-reinstall-esp-idf.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
-cronVers=36-live # version of this script
-sleepSecs=180 # seconds of warning to wait for user to log out
+cronVers=37-live # version of this script
+sleepMins=3 # minutes of warning to wait for user to log out
 log=$HOME/esp/install.log
 
 myUser=$USER
@@ -32,17 +32,19 @@ function logout_all_users() {
 	return $?
 }
 
+sleepSecs=$((sleepMins*60)) # calculated seconds of warning to wait for user to log out
+
 write_to_log " === $(date '+%d/%m/%Y %H:%M:%S %Z (%s)'): new reinstall ==="
 write_to_log "Cron version: ${cronVers}"
 
-warningString="\nWARNING:\n\tReinstalling esp-idf in ${sleepSecs} seconds! You will be logged out in ${sleepSecs}! Save and log out!\n\tmonitor with \`tail -f -n 50 $HOME/esp/install.log\`\n\tterminate with \`sudo killall cron-reinstall-esp-idf.sh\`\n\t$(date '+%d/%m/%Y %H:%M:%S %Z (%s)')\n"
+warningString="\nWARNING:\n\tReinstalling esp-idf in ${sleepSecs} minutes! You will be force logged out in ${sleepSecs} minutes! Save and log out!\n\tmonitor with \`tail -f -n 50 $HOME/esp/install.log\`\n\tterminate with \`sudo killall cron-reinstall-esp-idf.sh\`\n\t$(date '+%d/%m/%Y %H:%M:%S %Z (%s)')\n"
 
 write_to_log "$(date '+%d/%m/%Y %H:%M:%S %Z (%s)'): sending warning message to $myUser"
 write_to_log "$warningString"
 echo -e "$warningString" | sudo write $myUser
 return_status
 
-write_to_log "$(date '+%d/%m/%Y %H:%M:%S %Z (%s)'): sleeping ${sleepSecs} seconds"
+write_to_log "$(date '+%d/%m/%Y %H:%M:%S %Z (%s)'): sleeping ${sleepSecs} minutes"
 sleep $sleepSecs
 return_status
 
@@ -127,12 +129,12 @@ write_to_log $gitDataLog
 echo -e $gitDataLog >> $installDir/version-data.txt
 return_status
 
-rebootMsg="$(date '+%d/%m/%Y %H:%M:%S %Z (%s)'): rebooting in ${sleepSecs} seconds. seave and log out"
+rebootMsg="$(date '+%d/%m/%Y %H:%M:%S %Z (%s)'): rebooting in ${sleepSecs} minutes. seave and log out"
 write_to_log $rebootMsg
 echo $rebootMsg | sudo write princesspi
 return_status
 
-write_to_log "$(date '+%d/%m/%Y %H:%M:%S %Z (%s)'): sleeping ${sleepSecs} seconds"
+write_to_log "$(date '+%d/%m/%Y %H:%M:%S %Z (%s)'): sleeping ${sleepSecs} minutes"
 sleep $sleepSecs
 return_status