When automating daily data collection with external APIs, knowing when data becomes available or when quotas reset helps with scheduling. This post documents the observed timings for two APIs: Apple App Store Connect Sales Reports and YouTube Data API v3.
Apple App Store Connect Sales Reports API
What the official documentation says
According to Apple’s official documentation, daily sales reports are available “by 8:00 AM Pacific Time” the following day.
Reference: Sales and Trends Reports Availability - Apple Developer
Observed result
On 2026-03-22, I checked hourly to see when the previous day’s (2026-03-21) report became available.
16:00 JST (0:00 PT) → Not available
17:00 JST (1:00 PT) → Not available
18:00 JST (2:00 PT) → Not available
19:00 JST (3:00 PT) → Not available
20:00 JST (4:00 PT) → Not available
21:09 JST (5:09 PT) → Available
In this observation, the data became available at approximately 5:00 AM Pacific Time (21:00 JST) — about 3 hours before the documented 8:00 AM PT deadline.
Caveat
Apple’s documentation says “by 8:00 AM PT,” meaning 8 AM is the upper bound. The actual availability time may vary from day to day. The above is a single-day observation and does not guarantee that data will always be available at this time.
YouTube Data API v3 Quota Reset
What the official documentation says
The YouTube Data API v3 quota resets at midnight Pacific Time.
Observed result
The quota reset was observed between 16:00-17:00 JST (0:00-1:00 PT), which is consistent with the official documentation.
Summary
The table below summarizes the observed timings in both JST and PT.
| API | Event | Official Documentation | Observed Time (JST) | Observed Time (PT) |
|---|---|---|---|---|
| App Store Connect Sales Reports | Previous day’s data available | By 8:00 AM PT next day | ~21:00 | ~5:00 AM |
| YouTube Data API v3 | Quota reset | Midnight PT | 16:00-17:00 | 0:00-1:00 AM |
For Japan-based developers scheduling automation scripts: fetching App Store Connect data after 21:00 JST and running YouTube API tasks after 16:00 JST should work in practice.
However, since the App Store Connect observation is from a single day, scheduling after 1:00 AM JST the next day (corresponding to 8:00 AM PT) would be the safer choice based on the official documentation.