Eastern Daylight Saving Time
I noticed that the time for the tide on the St Lawrence River is not adjusted for daylight saving time thus making it 1 hour late.
@Paris-Brest I have checked it and if you mean St. Lawrence River in Canada, then it seems that the time displayed on Windy is correct. I have crossed referenced it with Timeanddate.com, they have -4 hours offset from UTC as we do.
Let me know.