Python使用pytz实现时区使用与转换的示例详解

import pytz
from datetime import datetime

# 1. 获取当前UTC时间
utc_now = datetime.now(pytz.utc)

# 2. 转换为目标时区（示例：上海和纽约）
shanghai_tz = pytz.timezone('Asia/Shanghai')
newyork_tz = pytz.timezone('America/New_York')
shanghai_time = utc_now.astimezone(shanghai_tz)
newyork_time = utc_now.astimezone(newyork_tz)

# 3. 比较两个时区的时间
time_diff = shanghai_time - newyork_time
is_same_day = shanghai_time.date() == newyork_time.date()

print(f"UTC时间: {utc_now.strftime('%Y-%m-%d %H:%M:%S %Z')}")
print(f"上海时间: {shanghai_time.strftime('%Y-%m-%d %H:%M:%S %Z')}")
print(f"纽约时间: {newyork_time.strftime('%Y-%m-%d %H:%M:%S %Z')}")
print(f"时间差: {abs(time_diff.total_seconds()/3600):.1f}小时")
print(f"是否同一天: {'是' if is_same_day else '否'}")

import pytz
print("总时区数量:", len(pytz.all_timezones))  # 输出563
for tz in pytz.common_timezones:  # 常用时区（约403个）
    print(tz)

# 检查两个时区是否均为星期一
def is_both_monday(tz1: str, tz2: str) -> bool:
    tz1_time = datetime.now(pytz.timezone(tz1))
    tz2_time = datetime.now(pytz.timezone(tz2))
    return tz1_time.weekday() == 0 and tz2_time.weekday() == 0  # 0=周一

print(is_both_monday("Asia/Shanghai", "Europe/London"))  # 根据当前日期返回布尔值

# -*- coding: utf-8 -*-
import pytz
 
print(pytz.all_timezones)
print(pytz.common_timezones)

tz = pytz.timezone('Asia/Shanghai')

# -*- coding: utf-8 -*-
import pytz
import datetime
 
utc = pytz.timezone('UTC')
now_time = datetime.datetime.now(tz=utc)
print(now_time)
 
shanghai = pytz.timezone('Asia/Shanghai')
shanghai_time = datetime.datetime.now(tz=shanghai)
print(shanghai_time)

>>> import datetime
>>> datetime.datetime.now(tz)
datetime.datetime(2009, 2, 21, 15, 12, 33, 906000, tzinfo=<DstTzInfo 'Asia/Shanghai' CST+8:00:00 STD>)