+.s1
+Disabling updates this way does not stop the Empire clock. Stuff
+using the clock, like BTU growth, continues normally. Should a
+scheduled update be actually missed, however, the Empire clock
+automatically recalibrates, to maintain the fixed number of ETUs
+between updates. This effectively stops the clock.
+.s1
+You should not use this command as a tool for implementing your update
+schedule! Enabling and disabling updates by hand is far too error
+prone, and your players can't trust the update command to find out
+when the next update really is. Use the update schedule file instead.
+.SA "update, enable, Time, Deity"