python库-Arrow处理时间

时间：2022-03-26 08:42:57

　　Arrow是一个处理时间的python库，能一键转换dates/times/timestamps等时间格式而不需要大量导致各种时间模块和格式转换函数，十分快捷方便

使用Arrow需要两步转换操作：

　　1、接收各种类型的时间datetimes/date/timestamp转换为Arrow类型

　　2、转换为自己需要的格式或者操作

import arrow

# 获取当前时间的Arrow格式

a = arrow.now()

print(a)

# 2018-03-08T23:21:21.981044+08:00

# 转换为时间戳

print(a.timestamp)

#

# 年月日

print(a.format('MM/DD/YYYY HH:mm:ss'))

# 03/08/2018 23:22:43

# 星期

print(a.format('MMMM DD dd'))

# March 08

# 时间戳转换为日期

timeStamp = 1730522598

b = arrow.get(timeStamp)

print(b)

# 2024-11-02T04:43:18+00:00

# 字符串转时间戳

c = '2009-01-01 23:00:00'

d = arrow.get(c)

print(d.timestamp)

#

# 90年后的日期

print(d.shift(years=90).format('YYYY/MM/DD HH:mm:ss'))

# 2099/01/01 23:00:00

# 修改日期

print(d.replace(year=1992,month=2,days=18).format('YYYY-MM-DD HH:mm:ss'))

# 1992-02-19 23:00:00

方法：

　　根据数据创建时间

　　arrow.Arrow(year, month, day, hour=0, minute=0, second=0, microsecond=0,tzinfo=None)

m = arrow.Arrow(2008,5,6 )

print(m)

# 2008-05-06T00:00:00+00:00

　　get(*args, **kwargs)#接受各种时间并转换为arrow格式

　　

print(arrow.get('2009-09-01T01:34:43'))

# 2009-09-01T01:34:43+00:00

print(arrow.get(datetime(2007,5,12)))

# 2007-05-12T00:00:00+00:00

print(arrow.get(2013,5,5,12,30,45))

# 2013-05-05T12:30:45+00:00

print(arrow.get(date(2013, 5, 5)))

# 2013-05-05T00:00:00+00:00

　　range(frame, start, end=None, tz=None, limit=None) 创建时间范围

start1 = datetime(2018,5,5,12,30)

end1 = datetime(2018,5,5,17,15)

for i in arrow.Arrow.range('hour', start1,end1):

    print(repr(i))

# <Arrow [2018-05-05T12:30:00+00:00]>

# <Arrow [2018-05-05T13:30:00+00:00]>

# <Arrow [2018-05-05T14:30:00+00:00]>

# <Arrow [2018-05-05T15:30:00+00:00]>

# <Arrow [2018-05-05T16:30:00+00:00]>

修改时间

　　replace(**kwargs) 替换某个时间区域

atim = arrow.utcnow()

print(atim)

# 2018-03-08T15:42:30.435938+00:00

print(atim.replace(year=2012,month=6))

# 2012-06-08T15:42:30.435938+00:00

　　shift(**kwargs) 移动时间

print(atim.shift(years=10,months=-2))

# 2028-01-08T15:43:57.632305+00:00

格式化参数

Year            YYYY    　　2000, 2001, 2002 ... 2012, 2013

                 YY        00, 01, 02 ... 12, 13

Month            MMMM    　 January, February, March ... [1]

                 MMM        Jan, Feb, Mar ... [1]

                 MM         01, 02, 03 ... 11, 12

                 M          1, 2, 3 ... 11, 12

Day of Year      DDDD       001, 002, 003 ... 364, 365

                 DDD        1, 2, 3 ... 4, 5

Day of Month     DD         01, 02, 03 ... 30, 31

                 D          1, 2, 3 ... 30, 31

                 Do         1st, 2nd, 3rd ... 30th, 31st

Day of Week      dddd       Monday, Tuesday, Wednesday ... [2]

                 ddd        Mon, Tue, Wed ... [2]

                 d          1, 2, 3 ... 6, 7

Hour             HH         00, 01, 02 ... 23, 24

                 H          0, 1, 2 ... 23, 24

                 hh         01, 02, 03 ... 11, 12

                 h          1, 2, 3 ... 11, 12

AM / PM          A          AM, PM, am, pm [1]

                 a          am, pm [1]

Minute           mm         00, 01, 02 ... 58, 59

                 m          0, 1, 2 ... 58, 59

Second           ss         00, 01, 02 ... 58, 59

                 s          0, 1, 2 ... 58, 59

Sub-second       S...       0, 02, 003, 000006, 123123123123... [3]

Timezone         ZZZ        Asia/Baku, Europe/Warsaw, GMT ... [4]

                 ZZ         -07:00, -06:00 ... +06:00, +07:00

                 Z          -0700, -0600 ... +0600, +0700

Timestamp        X          1381685817

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