如何通过UTC偏移值获取指定时区当前时间？

Here's a clean, straightforward implementation using Python's built-in datetime module—no external libraries needed!

import datetime

def get_current_time(utc_value):
    # Split the offset string into hours and minutes components
    hours_part, minutes_part = utc_value.split(':')
    
    # Convert parts to integers (handles positive/negative signs automatically)
    hours = int(hours_part)
    minutes = int(minutes_part)
    
    # Create a timedelta representing the UTC offset
    offset_delta = datetime.timedelta(hours=hours, minutes=minutes)
    
    # Make a timezone object from the delta
    target_timezone = datetime.timezone(offset_delta)
    
    # Fetch the current time in the target timezone
    current_time = datetime.datetime.now(target_timezone)
    
    # Optional: Return a formatted string instead of a datetime object (uncomment below)
    # return current_time.strftime("%Y-%m-%d %H:%M:%S %Z")
    
    return current_time

# Test the function
print(get_current_time("+05:30"))

Breakdown of How It Works: #

• Parsing the Offset: The input string (like "+05:30") gets split into hours and minutes. Using int() directly on the hours part handles both positive and negative offsets without extra sign-checking.
• Timezone Object: We create a datetime.timezone using a timedelta—this ensures we're working with a timezone-aware object, not just raw time values.
• Current Time: datetime.datetime.now(target_timezone) pulls the current local time for the specified offset, automatically adjusting from UTC.

Quick Notes: #

• If you want a human-readable string instead of a datetime object, uncomment the strftime line. The %Z placeholder will show the offset (e.g., +0530 for Indian Standard Time).
• This works for fixed UTC offsets (like "+05:30" or "-08:00"). It doesn’t handle timezones with daylight saving time changes—for that, you’d need a timezone database (like Python 3.9+'s zoneinfo), but that’s outside the scope of the original requirement.

内容的提问来源于stack exchange，提问作者Shubham srivastava