Set TZ inline to print a date in a specific timezone, then read with another TZ. Avoids messing with the system timezone.
Bash
# What is "now" in another timezone
TZ=Asia/Tokyo date # current time in Tokyo
TZ="America/New_York" date +"%F %T %Z" # 2025-03-12 15:25:00 EDT
# Convert a UTC stamp to local
date -d "2025-03-12T19:00:00Z" +"%F %T %Z" # 2025-03-12 14:00:00 CDT (your TZ)
# Convert a date FROM one tz TO another (round-trip via UTC)
TZ=Asia/Tokyo date -d "2025-03-12 09:00" +%s | \
xargs -I{} date -d @{} +"%F %T %Z"
# List available timezones
timedatectl list-timezones | grep -i tokyoSave your own code snippets
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