Numerai Compute not consistent on trigger Timing


On this page, the following is stated:


The webhook url assigned to your Prediction Nodes are automatically registered with your Numerai Models. Numerai will execute those webhooks on Saturday at 19:00 UTC (an hour after the round starts). If we haven’t successfully received …

However I just got an email for round 288 that the Compute was triggerred at 18:10 UTC. This difference makes a difference to me, as I load data to another cloud provider, and I can’t guarantee it will load in ten minutes.

So what is the true timing? 19:00 or 18:10 UTC?