rdfs:comment
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A type of parameter that describes various temporal elements:
• Generally the prevailing unit for measuring the time is minute – where the information is expressed either in minutes as an integer, or in hours and minutes. This way, both time information on a certain point in time and on a timespan may be given.
Example: the train departure is at 12:48; the trip length is 3:56; delay of the train amounts to 140 min.
• Day (date) is also used often, mostly defining the day of departure, day of operation etc. Days of operation of a specific train may be also defined by the so-called “calendar”, which is basically a subset of the days in the year, or may be defined by specific parameters.
Example: the train departure is scheduled on 12th March 2017, 12:48; the train operates regularly (has calendar) on Mondays, except of the Easter Monday, and except of the period from 15th December to 10th January.
• Sometimes the time is defined only in hours – specifically as the loading time given by the shipper on the consignment note.
• Seconds are seldom used in the railway operation. They may be used in a technical context, as the response time of a technical device, idle time of various resources, etc.
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