Timezone converter
Pick a local datetime, choose a source zone offset, then convert to another offset. For production, swap in a full IANA timezone database.
Related Guides & Tutorials
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Caching Strategies for Time-Sensitive Data
Cache invalidation using timestamps, TTL strategies, and timezone-aware caching patterns.
Terminal Equivalent
Convert and inspect wall-clock time across IANA timezones using the same data your server uses — no web UI required.
# Convert time between timezones in bash TZ='America/New_York' date TZ='Asia/Tokyo' date # Convert a specific timestamp to a timezone TZ='Europe/London' date -d @1733569200 # List all available timezones timedatectl list-timezones # Check current system timezone timedatectl status
Language Quick Reference
# Python
from datetime import datetime
import pytz
utc_time = datetime.fromtimestamp(1733569200, tz=pytz.utc)
eastern = utc_time.astimezone(pytz.timezone('America/New_York'))
print(eastern.strftime('%Y-%m-%d %H:%M:%S %Z'))How It Works
Timezone conversion works by storing all times as UTC internally, then applying an offset for display. Offsets are not always whole hours — India (IST) is UTC+5:30, Nepal is UTC+5:45. Daylight Saving Time (DST) adds complexity: the same timezone can have two different offsets depending on the date. The IANA timezone database (used by all modern systems) handles this automatically using historical DST rules.