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These functions convert dates and times recorded as strings to Stata dates. Stata dates are numbers that can be formatted so that they look like the dates you are familiar with.
6 lip 2015 · See help datetime_translation under the section "the date function". If your dates are in v1 and in the form yyyy-mm-dd you can specify the commands: generate v2 = date(v1, "YMD") format %td v2. The YMD is called a mask, and it tells Stata the order in which the parts of the date are specified.
Use a conversion function (F) Format the new variable. (B) Numerically encoded dates/times brought into Stata with import excel, import sas, or import spss will automatically be converted to Stata dates/datetimes.
You can convert dates stored as strings to Stata dates by using the string-to-numeric conversion functions; see Converting dates stored as strings to Stata dates. You can make Stata dates readable by placing the appropriate %fmt on the numeric variable; see Formatting Stata dates for display.
Dates and time variables are best read as strings. You then use one of the string-to-numeric conversion functions to convert the string to an appropriate %t value: Format String-to-numeric conversion function %tc clock(string, mask) %tC Clock(string, mask) %td date(string, mask) %tw weekly(string, mask) %tm monthly(string, mask) %tq quarterly ...
todatetime converts one or more date variables imported as strings to Stata's datetime format. See https://www.zach.prof for installation instructions and illustrative examples.
6 gru 2018 · The help for date() starts Code: date(s1,s2[,Y]) Description: the e_d date (days since 01jan1960) corresponding to s1 based on s2 and Y s1 contains the date, recorded as a string, in virtually any format.
