diff --git a/README.md b/README.md
index 2869c61..fdbbb67 100644
--- a/README.md
+++ b/README.md
@@ -80,7 +80,7 @@
 1. x `curl -s https://raw.githubusercontent.com/PrincessPi3/Precision-Timekeeping-Fuckery/refs/heads/main/installer_auto.sh?nocache=$RANDOM | "$SHELL"`  
 2. x `git -C ~/Precision-Timekeeping-Fuckery pull && bash ~/Precision-Timekeeping-Fuckery/installer1.sh`
 3. x `git -C ~/Precision-Timekeeping-Fuckery pull && bash ~/Precision-Timekeeping-Fuckery/installer2.sh`
-4. c`git -C ~/Precision-Timekeeping-Fuckery pull && bash ~/Precision-Timekeeping-Fuckery/installer3.sh`
+4. x `git -C ~/Precision-Timekeeping-Fuckery pull && bash ~/Precision-Timekeeping-Fuckery/installer3.sh`
 5. `git -C ~/Precision-Timekeeping-Fuckery pull && bash ~/Precision-Timekeeping-Fuckery/installer4.sh`
 6. `git -C ~/Precision-Timekeeping-Fuckery pull && bash ~/Precision-Timekeeping-Fuckery/test.sh`
 #### Software (Manual)
diff --git a/debug-level-conf/root-crontab b/debug-level-conf/root-crontab
index 434dc3a..1b59d65 100644
--- a/debug-level-conf/root-crontab
+++ b/debug-level-conf/root-crontab
@@ -1,4 +1,9 @@
-# m h  dom mon dow   command
-# set hardware I2C RTC hourly
-0 * * * * /bin/bash -c "/usr/sbin/hwclock -w 2>> /var/log/root-crontab.log"
-@reboot /usr/share/customscripts/ifnet "/usr/share/customscripts/webhook bootup" 2>> /var/log/root-crontab.log
+# m h dom mon dow   command
+# notify webhook of reboot
+@reboot /bin/bash -c "/usr/share/customscripts/ifnet \"/usr/share/customscripts/webhook bootup\" 2>> /var/log/root-crontab.log"
+
+# set the system time from the RTC every reboot
+@reboot /usr/sbin/hwclock -s 2>> /var/log/root-crontab.log
+
+# set the RTC from the system time every four hours
+0 */4 * * * /usr/sbin/hwclock -w 2>> /var/log/root-crontab.log
\ No newline at end of file
diff --git a/todo.txt b/todo.txt
index 0a5e5ee..847d467 100644
--- a/todo.txt
+++ b/todo.txt
@@ -41,4 +41,10 @@ check antenna tight both ends
 let run unimpeeded
 automate
     visudo
-    root crontab
\ No newline at end of file
+    root crontab
+root crontab
+    # set the system time from the RTC every reboot
+    @reboot hwclock -s 
+
+    # set the RTC from the system time every four hours
+    0 */4 * * * hwclock -w
\ No newline at end of file