Python 3.7+ As of Python 3.7 there is a method datetime.fromisoformat() which is exactly the reverse for isoformat(). Older Python If you have older Python, then this is the current best “solution” to this question: pip install python-dateutil Then… import datetime import dateutil def getDateTimeFromISO8601String(s): d = dateutil.parser.parse(s) return d
You don’t include an example, but if you don’t have a Z-offset or timezone, and assuming you don’t want durations but just the basic time, then maybe this will suit you: import datetime as dt >>> dt.datetime.strptime(‘1985-04-12T23:20:50.52’, ‘%Y-%m-%dT%H:%M:%S.%f’) datetime.datetime(1985, 4, 12, 23, 20, 50, 520000) The strptime() function was added to the datetime module in … Read more
It seems like a lot of complicated answers have been given, but this works just fine, does it not? new Date().toISOString()
UPDATE 2021 In Python 3.2 timezone was added to the datetime module allowing you to easily assign a timezone to UTC. >>> import datetime >>> n = datetime.datetime.now(datetime.timezone.utc) >>> n.isoformat() ‘2021-07-13T15:28:51.818095+00:00’ previous answer: Timezones are a pain, which is probably why they chose not to include them in the datetime library. try pytz, it has … Read more
The T doesn’t really stand for anything. It is just the separator that the ISO 8601 combined date-time format requires. You can read it as an abbreviation for Time. The Z stands for the Zero timezone, as it is offset by 0 from the Coordinated Universal Time (UTC). Both characters are just static letters in … Read more
Welcome to Python datetime! Dealing with dates and times is necessarily complex, and Python doesn’t come fully with batteries included in this case. You can’t use %z in strptime because Python has no classes to represent timezones (you are supposed to implement your own, or better yet include some other libraries). You want to use … Read more
As of Python 3.7, datetime.datetime.fromisoformat() can handle your format: >>> import datetime >>> datetime.datetime.fromisoformat(‘2012-11-01T04:16:13-04:00′) datetime.datetime(2012, 11, 1, 4, 16, 13, tzinfo=datetime.timezone(datetime.timedelta(days=-1, seconds=72000))) In older Python versions you can’t, not without a whole lot of painstaking manual timezone defining. Python does not include a timezone database, because it would be outdated too quickly. Instead, Python relies … Read more
The Python 2 strptime() function indeed does not support the %z format for timezones (because the underlying time.strptime() function doesn’t support it). You have two options: Ignore the timezone when parsing with strptime: time_obj = datetime.datetime.strptime(time_str[:19], ‘%Y-%m-%dT%H:%M:%S’) use the dateutil module, it’s parse function does deal with timezones: from dateutil.parser import parse time_obj = parse(time_str) … Read more
Swift 4 • iOS 11.2.1 or later extension ISO8601DateFormatter { convenience init(_ formatOptions: Options) { self.init() self.formatOptions = formatOptions } } extension Formatter { static let iso8601withFractionalSeconds = ISO8601DateFormatter([.withInternetDateTime, .withFractionalSeconds]) } extension Date { var iso8601withFractionalSeconds: String { return Formatter.iso8601withFractionalSeconds.string(from: self) } } extension String { var iso8601withFractionalSeconds: Date? { return Formatter.iso8601withFractionalSeconds.date(from: self) } } … Read more
isoparse function from python-dateutil The python-dateutil package has dateutil.parser.isoparse to parse not only RFC 3339 datetime strings like the one in the question, but also other ISO 8601 date and time strings that don’t comply with RFC 3339 (such as ones with no UTC offset, or ones that represent only a date). >>> import dateutil.parser … Read more