Mark 13:35

13:35 Stay alert, then, because you do not know when the owner of the house will return – whether during evening, at midnight, when the rooster crows, or at dawn –

Mark 14:37

14:37 Then ¹  he came and found them sleeping, and said to Peter, “Simon, are you sleeping? Couldn’t you stay awake for one hour?

[14:37]  ¹ tn Here καί (kai) has been translated as “then” to indicate the implied sequence of events within the narrative.