00:00 UTC
4,030 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
358 accounts · 4,030 observations
PostlyResearchSeptember 2026 · Design a better timing test
Publishing times
When sampled deliveries were published, grouped by UTC hour.
Evidence → Understanding → ActionFree to read and shareFresh reports every month · Return on the 1st
What this means for your marketing
Explore the public guides behind this study: how to interpret the evidence, apply it to a product or campaign, and build a practical test.
September 2026 · UTC · Generated 2026-10-04
Download branded PDF ↓The findings
Verified deliveries by UTC hour
01:00 UTC
3,741 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
311 accounts · 3,741 observations
02:00 UTC
4,546 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
358 accounts · 4,546 observations
03:00 UTC
4,321 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
309 accounts · 4,321 observations
04:00 UTC
3,871 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
407 accounts · 3,871 observations
05:00 UTC
4,542 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
493 accounts · 4,542 observations
06:00 UTC
4,117 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
567 accounts · 4,117 observations
07:00 UTC
3,653 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
547 accounts · 3,653 observations
08:00 UTC
4,078 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
677 accounts · 4,078 observations
09:00 UTC
4,563 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
467 accounts · 4,563 observations
10:00 UTC
2,876 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
406 accounts · 2,876 observations
11:00 UTC
4,974 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
419 accounts · 4,974 observations
12:00 UTC
5,658 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
463 accounts · 5,658 observations
13:00 UTC
6,191 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
568 accounts · 6,191 observations
14:00 UTC
5,891 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
594 accounts · 5,891 observations
15:00 UTC
5,415 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
558 accounts · 5,415 observations
16:00 UTC
4,976 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
517 accounts · 4,976 observations
17:00 UTC
5,607 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
459 accounts · 5,607 observations
18:00 UTC
5,237 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
499 accounts · 5,237 observations
19:00 UTC
4,420 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
435 accounts · 4,420 observations
20:00 UTC
3,827 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
357 accounts · 3,827 observations
21:00 UTC
3,557 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
312 accounts · 3,557 observations
22:00 UTC
3,985 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
357 accounts · 3,985 observations
23:00 UTC
4,383 deliveries
Observed delivery hour in UTC, not a best-time recommendation.
328 accounts · 4,383 observations
What to try next
Busy publishing hours are not automatically the best times to post. Use audience-local time and compare performance in a controlled test.
Use the free worksheet →Read it with context
Every published row requires at least 30 accounts and 100 observations. Platform definitions, sample selection, and measurement age affect interpretation.
Read the methodology →