The usage quota for the YouTube Data API (10,000 units per day) is measured and reset based on the following rules:
✅ Quota Reset Timing
- Reset occurs daily at midnight (12:00 AM) Pacific Time (PST).
- In Japan Standard Time (JST), this corresponds to 5:00 PM daily (or 4:00 PM during daylight saving time).
✅ Summary of Behavior
| Item | Description |
|---|---|
| Reset Method | Bulk reset at a fixed time (not auto-recovering over time) |
| Time Zone Reference | PST (Pacific Standard Time) |
| Reset Time in JST | Around 5:00 PM daily (4:00 PM during DST) |
| Auto Recovery (gradual refill over time) | ❌ Not available |
| When Quota is Exhausted | API calls will fail with a quota exceeded error (HTTP 429) |
✅ Common Misconceptions
- “It recovers 24 hours after each use” → Incorrect
- “It gradually recovers over time” → Incorrect
- “It resets at midnight in Japan” → Incorrect
🔍How to Check
Go to the quota page in the Google Cloud Console, open YouTube Data API v3, and check the Queries per day section. It shows how many units you’ve used so far, and sometimes explicitly displays the “next reset time.”
✍ Additional Tips
If you reach the quota limit too quickly:
- Use low-cost endpoints like
videos.list(1 unit per call) - Avoid high-cost endpoints like
search.list(100 units per call) - Consider implementing caching strategies and query consolidation