在 pandas 使用时区to_datetime [英] using time zone in pandas to_datetime

问题描述

我有来自纪元时间戳的时间 我使用data.Time_req = pd.to_datetime(data.Time_req) 但是我得到UTC时间，我需要从给定时间开始+5:30.我如何告诉熊猫使用'IST'时区，或者仅使用5hrs 30 mins时区来显示当前时间.例如. 7 hrs应该变成12:30 hrs，依此类推.

I have time from epochs timestamps I use data.Time_req = pd.to_datetime(data.Time_req) But I get UTC time, I need +5:30 from the given time. How do I tell pandas to use 'IST' timezone or just 5hrs 30 mins further to the time it currently shows me. eg. 7 hrs should become 12:30 hrs and so on.

推荐答案

您可以使用

You can use tz_localize to set the timezone to UTC/+0000, and then tz_convert to add the timezone you want:

start = pd.to_datetime('2015-02-24')
rng = pd.date_range(start, periods=10)

df = pd.DataFrame({'Date': rng, 'a': range(10)})  

df.Date = df.Date.dt.tz_localize('UTC').dt.tz_convert('Asia/Kolkata')
print (df)
                       Date  a
0 2015-02-24 05:30:00+05:30  0
1 2015-02-25 05:30:00+05:30  1
2 2015-02-26 05:30:00+05:30  2
3 2015-02-27 05:30:00+05:30  3
4 2015-02-28 05:30:00+05:30  4
5 2015-03-01 05:30:00+05:30  5
6 2015-03-02 05:30:00+05:30  6
7 2015-03-03 05:30:00+05:30  7
8 2015-03-04 05:30:00+05:30  8
9 2015-03-05 05:30:00+05:30  9

使用时区

如果仅需要添加Timedelta:

df.Date = df.Date + pd.Timedelta('05:30:00')
print (df)
                 Date  a
0 2015-02-24 05:30:00  0
1 2015-02-25 05:30:00  1
2 2015-02-26 05:30:00  2
3 2015-02-27 05:30:00  3
4 2015-02-28 05:30:00  4
5 2015-03-01 05:30:00  5
6 2015-03-02 05:30:00  6
7 2015-03-03 05:30:00  7
8 2015-03-04 05:30:00  8
9 2015-03-05 05:30:00  9

注意::添加Timedelta会更改与datetime对象关联的纪元时间戳.这对于许多应用程序可能不是期望的.

NOTE: Adding Timedelta will change the epoch timestamp associated with the datetime object. This may not be desired for many applications.

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