iso8601

In ISO 8601, durations are given in the format P[n]Y[n]M[n]DT[n]H[n]M[n]S . Examples: 20 seconds: PT20.0S One year, 2 month, 3 days, 4 hours, 5 minutes, 6 seconds: P1Y2M3DT4H5M6S Question: Given a string that contains a duration in iso 8601 format. I want to obtain the overall number of seconds of that duration. What is the recommended way in standard C++11 to achieve this? Remarks: E.g., there is ptime from_iso_string(std::string) in boost DateTime which does not fit here. Is there a similar way without doing a regex by hand? Use the standard regex library, the regex you want is something

I have an array of dates in ISO8601 format and need to sort them. Does anyone have a suggestion for an algorithm that would work? I don't think they will sort as strings unless I'm much mistaken, so I assume they have to be broken down into their component parts? Can someone post an algorithm, preferably language agnostic, but VB or C# example would work as long as it just uses strings and integers and no functions that are built-in to the language. Thanks! It depends on whether or not you're mixing formats. Within any specific format, like yyyy-mm-dd or yyyy-Www-d , ISO 8601 is built to sort

What mode for MySQL's WEEK() function yields the ISO 8601 week of the year ? Argument 2 of WEEK() sets the mode according to this chart: +--------------------------------------------------------------------+ | Mode | First day of week | Range | Week 1 is the first week ... | |------+-------------------+-------+---------------------------------| | 0 | Sunday | 0-53 | with a Sunday in this year | |------+-------------------+-------+---------------------------------| | 1 | Monday | 0-53 | with more than 3 days this year | |------+-------------------+-------+---------------------------------| | 2

Why python 2.7 doesn't include Z character (Zulu or zero offset) at the end of UTC datetime object's isoformat string unlike JavaScript? >>> datetime.datetime.utcnow().isoformat() '2013-10-29T09:14:03.895210' Whereas in javascript >>> console.log(new Date().toISOString()); 2013-10-29T09:38:41.341Z stiv Python datetime objects don't have time zone info by default, and without it, Python actually violates the ISO 8601 specification ( if no time zone info is given, assumed to be local time ). You can use the pytz package to get some default time zones, or directly subclass tzinfo yourself: from

This question already has an answer here: How to create a .NET DateTime from ISO 8601 format 7 answers I have a string, "2009-10-08 08:22:02Z", which is in ISO 8601 format. How do I use DateTime to parse this format? JDunkerley string txt= "2009-10-08 08:22:02Z"; DateTime output = DateTime.ParseExact(txt, "u", System.Globalization.CultureInfo.InvariantCulture); The DateTime class supports the standard format string of u for this format I think for the ISO format (with the T separator), use "s" instead of "u". Or use: string txt= "2009-10-08 08:22:02Z"; DateTime output = DateTime.ParseExact(txt

I have a ISO-8601 date in VARCHAR2 type, how can i convert that String date to timestamp in oracle db? Date Example: "2014-09-12T11:53:06+00:00" Maybe is something like the following but i not sure what is the format. SELECT to_timestamp_tz ('2014-09-12T11:53:06+00:00', ????) FROM DUAL The date format model elements are listed in the documentation : SELECT to_timestamp_tz ('2014-09-12T11:53:06+00:00', 'YYYY-MM-DD"T"HH24:MI:SSTZH:TZM') FROM DUAL TO_TIMESTAMP_TZ('2014-09-12T11:53:06+00:00','YYYY-MM-DD"T"HH24:MI:SSTZH:TZM ---------------------------------------------------------------------------

I can convert a Delphi TDate to ISO 8601 format easily using this: DateTimeToString(result, 'yyyy-mm-dd', myDate); What's the idiomatic way to do the inverse conversion? StringToDateTime() doesn't seem to exist. Obviously I can do it the "hard" way by manually parsing the string and encoding the result, but that seems a poor choice. Jeroen Wiert Pluimers why re-invent the wheel? XML uses ISO 8601 for date and date-time storage. Delphi has had built-in support for that since Delphi 6 in the XSBuiltIns unit. This answer explains how for DateTime, this is for Date only using the TXSDate class: