#BrightestSolarDay on X: trending history
#BrightestSolarDay has trended in 11 locations since 20 February 2021. It was last on a list 20 February 2021.
First seen
20 Feb 2021
Last seen
20 Feb 2021
Locations
11
Best rank
–
Biggest days
| 20 Feb 2021 | 11 locations |
Every time it trended
List updates per year, all locations.
2021
11 updates, 1 day
Post volume on its busiest days
Highest volume recorded with the trend; 1 day has a figure.
- 20 February 2021177,942 posts
From twtData's records of X trends in 450+ locations: the biggest countries every hour, the rest once a day. An "update" is one snapshot that listed this topic. Rank and hours on the lists count from November 2025, when our snapshots started keeping X's order; earlier days count only for locations and dates.