Stobaeus, Selections 1.8.40b (103.7–8 Wachsmuth 1884) = Aëtius 1.22.6 (Dox. p. 318.22–4) = Critolaus, fr. 14 Wehrli 1969b

Antiphon and Critolaus [said that] time [is] a thought or a measure, not something that subsists [hupostasis].

Pseudo-Archytas, On Universal Logos or the Ten Categories 30.9–16 Thesleff

(1) [Time] always was and will be, and the present moment [the ‘now’] will never cease becoming different again and again, different in number but the same in kind. (2) But [time] is different from other continua, since of a line and an area and of place the parts subsist, while of time the [parts] that have come to be have perished, those that are coming to be are perishing, and those that will come to be will perish. (3) And for this reason time either does not exist at all or does so in an obscure way and with difficulty. For how could that really exist of which the past no longer exists, the future does not exist yet, and the now is without parts and indivisible?