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X5.1 solar flare, G4 geomagnetic storm watch

(www.spaceweatherlive.com)
391 points sva_ | 1 comments | 11 Nov 25 21:18 UTC | HN request time: 0.206s | source
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Arainach ◴[11 Nov 25 22:20 UTC] No.45893666[source]▶
> could impact our planet as early as 16 UTC on 12 November

Is that 16:00 or 00:16?

replies(2): >>45893700 #>>45893871 #
1. aftbit ◴[11 Nov 25 22:40 UTC] No.45893871[source]▶
ISO timestamps are the one true way:

2025-11-12T16Z