UTC vs Timezone - The Bug That Costs Developers Hours
Time zone bugs can silently break production.
Many developers store timestamps wrong. They either convert everything to UTC (breaking scheduled reminders) or store local times (breaking historical records). This video breaks down the two datetime problems that look identical but need completely different solutions.
You'll learn:
→ When to store UTC vs local time + timezone identifier
→ Why "UTC-5" and "America/New_York" aren't the same thing
→ The hour that doesn't exist (and the hour that happens twice)
→ Why adding 24 hours doesn't always mean "tomorrow"
Timestamps:
0:00 - The bug that ap…
Watch on YouTube ↗
(saves to browser)
Chapters (6)
The bug that appears from nowhere
0:21
Two different datetime problems
2:09
Offset vs Timezone (the photo vs flipbook analogy)
3:15
DST edge cases that break your code
4:40
Quick reference rules
5:18
Summary
DeepCamp AI