Equivent duration inconsistency

The Equivent on 6 Jan 2026 was scheduled from 17:00 to 19:00, i.e. 4 half hours or (4x30x60) 7200 seconds.

But the Webhook payload stated 3600:

Date: 06/01/2026
Start received: 17:01:56
ID: f40ddf6742b7761b0f7df1f65a639c4fccc23479c5c4c984885ff588f1dfeb0e
End received: 19:00:02
Duration: 3600

Not a big issue as my power down automations coped, but did we sit in the dark longer than everyone else?

Jerry

My 6th Jan session was from 17:00-19:00 and we did sit in the dark for those two hours