This is my script for seeing sunup and sundown times in your MUME 'clock' 
(the 'time' command) It saves a fair bit of time, and is best for orcses and 
trollies who like to wait for the cool darkness

Setup is easy peasy: Copy these (individually I'm afraid, JMC has a tendency 
to crash if you dump them) into your client.

Races other than elves:

#substitute {Afterlithe,} {Afterlithe (5am-9pm),}
#substitute {Afteryule,} {Afteryule (8am-6pm),}
#substitute {Astron,} {Astron (7am-7pm),}
#substitute {Blotmath,} {Blotmath (7am-8pm),}
#substitute {Forelithe,} {Forelithe (6am-8pm),}
#substitute {Foreyule,} {Foreyule (7am-7pm),}
#substitute {Halimath,} {Halimath (5am-9pm),}
#substitute {Rethe,} {Rethe (8am-6pm),}
#substitute {Solmath,} {Solmath (9am-5pm),}
#substitute {Thrimidge,} {Thrimidge (7am-8pm),}
#substitute {Wedmath,} {Wedmath (4am-10pm),}
#substitute {Winterfilth,} {Winterfilth (6am-8pm),}

Elves:

#substitute {%1, the %2 of Birithon, Year %3 of the Third Age.} {%1, the %2 
of Birithon (7am - 7pm) Year %3 of the Third Age.}
#substitute {%1, the %2 of Cerveth, Year %3 of the Third Age.} {%1, the%2 of 
Cerveth (5am - 9pm) Year %3 of the Third Age.}
#substitute {%1, the %2 of Gwaeron, Year %3 of the Third Age.} {%1, the %2 
of Gwaeron (8am - 6pm) Year %3 of the Third Age.}
#substitute {%1, the %2 of Gwirith, Year %3 of the Third Age.} {%1, the %2 
of Gwirith (7am - 7pm) Year %3 of the Third Age.}
#substitute {%1, the %2 of Hithui, Year %3 of the Third Age.} {%1, the %2 of 
Hithui (7am - 8pm) Year %3 of the Third Age.}
#substitute {%1, the %2 of Ivanneth, Year %3 of the Third Age.} {%1, the %2 
of Ivanneth (5am - 9pm) Year %3 of the Third Age.}
#substitute {%1, the %2 of Lothron, Year %3 of the Third Age.} {%1, the %2 
of Lothron (7am - 8pm) Year %3 of the Third Age.}
#substitute {%1, the %2 of Narbeleth, Year %3 of the Third Age.} {%1, the %2 
of Narbeleth (6am - 8pm) Year %3 of the Third Age.}
#substitute {%1, the %2 of Narwain, Year %3 of the Third Age.} {%1, the %2 
of Narwain (8am - 6pm) Year %3 of the Third Age.}
#substitute {%1, the %2 of Ninui, Year %3 of the Third Age.} {%1, the %2 of 
Ninui (9am - 5pm) Year %3 of the Third Age.}
#substitute {%1, the %2 of Norui, Year %3 of the Third Age.} {%1, the %2 of 
Norui (6am - 8pm) Year %3 of the Third Age.}
#substitute {%1, the %2 of Urui, Year %3 of the Third Age.} {%1, the %2 of 
Urui (4am - 10pm) Year %3 of the Third Age.}