From the NannyMUD documentation

LAST CHANGE

2000-12-19

FUNCTION

NAME
        time_string - Converts seconds to a string.


LOCATION
	/obj/support

SYNTAX
	string time_string(int time)

DESCRIPTION
	Converts a number of seconds to a string showing days,
	hours, minutes and seconds.


EXAMPLE
	str="/obj/support"->time_string(3601);

	str is now "1 hour and 1 second".