Date and Time

Structural Elements of a Program

 

In the service of the date and time functions the date and time are expressed as a numeric value representing the number of seconds from January 1, 1601 in 00:00:00, with a resolution accuracy given in milliseconds. This provides for easy executing the time operations, such as time addition and subtraction.

 

bm970         actual date and time

 

The actual date and time element is a numeric variable representing the local actual date and time. The variable can be read and data can be recorded in it, thus changing the actual date and time.

 

bm971         convert local time to world time

 

The convert local time to world time function converts the local time to the world time (UTC, Universal Time Coordinated). A precondition for a correct conversion is the setting of the time zone and the summer time switch in the Windows system (Control Panels / Date and Time / Time Zone).

 

bm972         convert world time to local time

 

The convert world time to local time function converts the world time (UTC, Universal Time Coordinated) to the local time. A precondition for a correct conversion is the setting of the time zone and the summer time switch in the Windows system (Control Panels / Date and Time / Time Zone).

 

bm973 merge components of date and time

  bm974 year (default 1601)

  bm975 month (default 1)

  bm976 day (default 1)

  bm977 hour (default 0)

  bm978 minute (default 0)

  bm979 second (default 0)

  bm980 millisecond (default 0)

 

The merge components of date and time function enables to convert the date and time represented by corresponding data to a representation in a certain number of seconds. It is possible to use only a part of the date and time indication as a date entry or as a time entry only. In this case it is possible to leave the default setting of the positions not used. Thus, for example, when using the time only the resulting reading will represent the number of seconds from the beginning of the day. The data may be processed by common operations, as, for instance the representation by means of a function for the time conversion to a text form.

 

bm981         year from date and time

 

The year from date and time function takes the year entry from the date and time and returns it as a numeric data.

 

bm982         month from date and time

 

The month from date and time function takes the month entry from the date and time and returns it as a numeric data.

 

bm983         day from date and time

 

The day from date and time function takes the day entry from the date and time and returns it as a numeric data.

 

bm984         day of week from date and time (0=sunday, 1=monday, ...)

 

The day of week from day and time function takes the day-of-the-week entry from the date and time and returns it as a numeric data. Number 0 represents Sunday, number 1 Monday through number 6 representing Saturday.

 

bm985         hour from date and time

 

The hour from date and time function takes the hour entry from the date and time and returns it as a numeric data.

 

bm986         minute from date and time

 

The minute from date and time function takes the minute entry from the date and time and returns it as a numeric data.

 

bm987         second from date and time

 

The second from date and time function takes the second entry from the date and time and returns it as a numeric data.

 

bm988         millisecond from date and time

 

The millisecond from date and time function takes the millisecond entry from the date and time and returns it as a numeric data.

 

bm989         convert date to text "day.month.year"

 

The convert date to text "day.month.year" function converts the date data to a date text in the European format "day.month.year".

 

bm990         convert date to text "month/day/year"

 

The convert date to text "month/day/year" function converts the date data to a date text in the American format "month/day/year".

 

bm991         convert date to text "year-month-day"

 

The convert date to text "year-month-day" function converts the date data to a date text in the Japanese format "year-month-day".

 

bm992         convert time to text "hour:minute:second" (24 hours)

 

The convert time to text "hour:minute:second" (24 hours) function converts the time data to a time text with a 24-hour cycle.

 

bm993         convert time to text "hour:minute:second x" (12 hours)

 

The convert time to text "hour:minute:second x" (12 hours) function converts the time data to a time text with a 12-hour cycle, supplemented by the "a" (=morning) or "p" (=afternoon) indicator.