Working with times and dates
Time and date formats may vary depending on your data source and locale. The formats of date and time are specific to each flow and are set in the flow properties.
The following examples are commonly used functions for working with date/time fields.
Calculating time passed
You can easily calculate the time passed from a baseline date using a family
of functions similar to the following one. This function returns the time in months from the
baseline date to the date represented by the date string DATE as a real number.
This is an approximate figure, based on a month of 30.0 days.
date_in_months(Date)Comparing date/time values
Values of date/time fields can be compared across records using functions
similar to the following one. This function returns a value of true if the date string
DATE1 represents a date prior to that represented by the date string
DATE2. Otherwise, this function returns a value of 0.
date_before(Date1, Date2)Calculating differences
You can also calculate the difference between two times and two dates using functions, such as:
date_weeks_difference(Date1, Date2) This function returns the time in weeks from the date represented by the date
string DATE1 to the date represented by the date string DATE2 as a
real number. This is based on a week of 7.0 days. If DATE2 is prior to
DATE1, this function returns a negative number.
Today's date
The current date can be added to the data set using the function
@TODAY. Today's date is added as a string to the specified field or new field using
the date format selected in the stream properties dialog box. See Date and time functions for more
information.