    deferred class
    	TIME_MEASUREMENT

    General
    	cluster: time
    	description: "Time Measurable Units"

    Ancestors
    	TIME_CONSTANTS

    Queries
    	Date_time_tools: DATE_TIME_TOOLS
    	default_format_string: STRING_8
    	fine_second: REAL_64
    	hour: INTEGER_32
    	Hours_in_day: INTEGER_32
    	minute: INTEGER_32
    	Minutes_in_hour: INTEGER_32
    	second: INTEGER_32
    	Seconds_in_day: INTEGER_32
    	Seconds_in_hour: INTEGER_32
    	Seconds_in_minute: INTEGER_32
    	time_default_format_string: STRING_8

    Commands
    	set_fine_second (s: REAL_64)
    	set_fractionals (f: REAL_64)
    	set_hour (h: INTEGER_32)
    	set_minute (m: INTEGER_32)
    	set_second (s: INTEGER_32)