Title here
Summary here
Time in Wolfram Language
(* We'll start by getting the current time. *)
now = DateObject[]
Print[now]
(* You can build a DateObject by providing the year, month, day, etc.
Times are always associated with a TimeZone. *)
then = DateObject[{2009, 11, 17, 20, 34, 58.651387237}, TimeZone -> 0]
Print[then]
(* You can extract the various components of the date value as expected. *)
Print[DateValue[then, "Year"]]
Print[DateValue[then, "MonthName"]]
Print[DateValue[then, "Day"]]
Print[DateValue[then, "Hour"]]
Print[DateValue[then, "Minute"]]
Print[DateValue[then, "Second"]]
Print[DateValue[then, "Millisecond"] * 1000000]
Print[DateValue[then, "TimeZone"]]
(* The Monday-Sunday day of week is also available. *)
Print[DateValue[then, "DayName"]]
(* These functions compare two dates, testing if the first occurs before,
after, or at the same time as the second, respectively. *)
Print[now > then]
Print[now < then]
Print[now == then]
(* The Subtract function returns a Quantity representing
the interval between two dates. *)
diff = now - then
Print[diff]
(* We can compute the length of the duration in various units. *)
Print[QuantityMagnitude[UnitConvert[diff, "Hours"]]]
Print[QuantityMagnitude[UnitConvert[diff, "Minutes"]]]
Print[QuantityMagnitude[UnitConvert[diff, "Seconds"]]]
Print[QuantityMagnitude[UnitConvert[diff, "Nanoseconds"]]]
(* You can use Plus to advance a date by a given duration,
or with a minus to move backwards by a duration. *)
Print[then + diff]
Print[then - diff]This code demonstrates various operations with dates and times in Wolfram Language, which is analogous to the Go example provided. Here’s an explanation of the key differences and similarities:
Wolfram Language uses
DateObjectfor representing dates and times, similar to Go’stime.Time.The
DateValuefunction is used to extract components of a date, replacing Go’s methods likeYear(),Month(), etc.Comparison operations in Wolfram Language use standard comparison operators (
>,<,==) instead of methods likeBefore(),After(), andEqual().Time differences are represented as
Quantityobjects in Wolfram Language, which can be easily converted between different units usingUnitConvert.Adding and subtracting durations from dates uses the standard
+and-operators in Wolfram Language.Wolfram Language doesn’t have a built-in concept of “location” for time zones. Instead, it uses a numerical offset for the
TimeZoneoption.
When running this code, you’ll see output similar to the Go example, showing the current time, the constructed time, various components of the date, comparisons, and calculations with time durations.