Convert Utc Datetime String to Local Datetime

Convert UTC datetime string to local datetime

If you don't want to provide your own tzinfo objects, check out the python-dateutil library. It provides tzinfo implementations on top of a zoneinfo (Olson) database such that you can refer to time zone rules by a somewhat canonical name.

from datetime import datetime
from dateutil import tz

# METHOD 1: Hardcode zones:
from_zone = tz.gettz('UTC')
to_zone = tz.gettz('America/New_York')

# METHOD 2: Auto-detect zones:
from_zone = tz.tzutc()
to_zone = tz.tzlocal()

# utc = datetime.utcnow()
utc = datetime.strptime('2011-01-21 02:37:21', '%Y-%m-%d %H:%M:%S')

# Tell the datetime object that it's in UTC time zone since 
# datetime objects are 'naive' by default
utc = utc.replace(tzinfo=from_zone)

# Convert time zone
central = utc.astimezone(to_zone)

Edit Expanded example to show strptime usage

Edit 2 Fixed API usage to show better entry point method

Edit 3 Included auto-detect methods for timezones (Yarin)

How to convert an UTC datetime string into a local datetime in Dart?

the string 2022-03-15T02:33:53.488427 does not include a timezone. So to tell Dart that you want this to be UTC time, then append a "Z" to the string. Then it knows that it is Zulu time. Otherwise it's going to assume that you are in local time when it parses it.
try

createdAt = DateTime.tryParse('2022-03-15T02:33:53.488427Z').toLocal();

Use print(createdDate?.timeZoneName) to confirm UTC or your local

how to convert string to DateTime as UTC as simple as that

Use DateTimeOffset.Parse(string).UtcDateTime.

How to convert a UTC datetime to a local datetime using only standard library?

I think I figured it out: computes number of seconds since epoch, then converts to a local timzeone using time.localtime, and then converts the time struct back into a datetime...

EPOCH_DATETIME = datetime.datetime(1970,1,1)
SECONDS_PER_DAY = 24*60*60

def utc_to_local_datetime( utc_datetime ):
    delta = utc_datetime - EPOCH_DATETIME
    utc_epoch = SECONDS_PER_DAY * delta.days + delta.seconds
    time_struct = time.localtime( utc_epoch )
    dt_args = time_struct[:6] + (delta.microseconds,)
    return datetime.datetime( *dt_args )

It applies the summer/winter DST correctly:

>>> utc_to_local_datetime( datetime.datetime(2010, 6, 6, 17, 29, 7, 730000) )
datetime.datetime(2010, 6, 6, 19, 29, 7, 730000)
>>> utc_to_local_datetime( datetime.datetime(2010, 12, 6, 17, 29, 7, 730000) )
datetime.datetime(2010, 12, 6, 18, 29, 7, 730000)

How can I convert from UTC time to local time in python?

You can use sth like this:

from datetime import datetime
from dateutil import tz

from_zone = tz.gettz('UTC')
to_zone = tz.gettz('Asia/Kolkata')

utc = datetime.strptime('2011-01-21 02:37:21', '%Y-%m-%d %H:%M:%S')

utc = utc.replace(tzinfo=from_zone)

central = utc.astimezone(to_zone)

I want to convert utc time string to local time data - Flutter

you can use toLocal method. try below code

    var date = DateFormat("yyyy-MM-dd HH:mm:ss").parse(dateUtc, true);
    var local = date.toLocal().toString();
    print(local);

How to convert UTC datetime to local datetime (Australia/Melbourne) in Python

use pandas functionality; pd.to_datetime and then tz_convert.

# input strings to datetime data type:
df['Date'] = pd.to_datetime(df['Date'])

# UTC is already set (aware datetime); just convert:
df['Date'] = df['Date'].dt.tz_convert('Australia/Melbourne')

df['Date']
Out[2]: 
0   2021-10-14 17:57:00+11:00
1   2021-09-05 18:30:00+10:00
2   2021-10-20 15:34:00+11:00
3   2021-10-20 08:49:00+11:00
4   2021-10-01 06:53:00+10:00
Name: Date, dtype: datetime64[ns, Australia/Melbourne]

Convert UTC date time to local date time

Append 'UTC' to the string before converting it to a date in javascript:

var date = new Date('6/29/2011 4:52:48 PM UTC');
date.toString() // "Wed Jun 29 2011 09:52:48 GMT-0700 (PDT)"

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