【Python入門】Pythonのdatetimeモジュールとは？使い方と活用方法を徹底解説

# Datetimeオブジェクトの作成（現時点における日時の参照）
CURRENT = datetime.datetime.now()

# Datetimeオブジェクトの作成（特定の日時の指定）
NEW = datetime.datetime(YEAR, MONTH, DAY)

# Datetimeオブジェクトによる日時の計算
NEW = DATETIME + datetime.timedelta(DAY)

# Datetimeオブジェクトによる経過日時の計算
PASS = DATETIME(After) - DATETIME(Before)

import datetime

current_info = datetime.datetime.now()
print(current_info)

2023-03-11 22:11:37.816693

import datetime

current_info = datetime.datetime.now()

info_Y = current_info .year
info_M = current_info .month
info_D = current_info .day
info_h = current_info .hour
info_m = current_info .minute
info_s = current_info .second
info_mic = current_info .microsecond

print(f"{info_Y}年{info_M}月{info_D}日 {info_h}時{info_m}分{info_s}秒{info_mic}マイクロ秒")

2023年3月11日 22時17分9秒548854マイクロ秒

import datetime

new_year = datetime.datetime(2023, 1, 1)

print(new_year)

2023-01-01 00:00:00

import datetime

current_info = datetime.datetime.now()

print(current_info.strftime("%B %d %Y (%a)"))

March 11 2023 (Sat)

import datetime

current = datetime.datetime.now()
next = current + datetime.timedelta(days=7)

print(current)
print(next)

2023-03-11 22:30:18.909080
2023-03-18 22:30:18.909080

import datetime

current = datetime.datetime.now()
new_year = datetime.datetime(2023, 1, 1)

print(current - new_year)

69 days, 22:32:57.979170