That's an interesting idea. Let's see:
Genesis 1:9
HEB: וְתֵרָאֶ֖ה הַיַּבָּשָׁ֑ה
וַֽיְהִי־ כֵֽן׃
INT: appear the dry and it was so
Genesis 1:11
HEB: עַל־ הָאָ֑רֶץ
וַֽיְהִי־ כֵֽן׃
INT: on the earth and it was so
So how is that phrase used?
act (1), administered* (1), allotted (1),
am (13), appeared* (1), apply (1),
became (85), became his and lived (1), became* (1),
become (221), becomes (13), becoming (1),
been (90), been done (2), befall (1), befallen (2), being (7), belong (9), belonged (4), belongs (2), brought (1),
came (358), came into being (1), came expressly (1), cause (1), caused (1),
come (86), come to pass (3), comes (2), comes to pass (1), committed (1), consists (1), continue (6), continued (3), correspond (1), decided* (1), done (4), done* (1), ended* (13), endure (3), event* (1), exhausted (1), existed (3), exists (2), extend (3), extended (3), fall (4), fallen (1), fared (1), fell (1), follow* (1), followed* (1), form (1), gave (1), give (1), go (4), gone (1), grown (1),
had (80), had not been (2), had been (1), had belonged (1), had...been (2), happen (11), happened (48), happens (4), has (19), has become (1), has had (1),
have (90), have become (6), have...place (1), having (2), held (1), help* (1), indeed (1), keep* (1), lasted (1), lasts (1), lay (2), left (2), lies (1), lived* (1), lives (1), made (3), marry* (4), marrying* (1), numbered (1), occur (7), occurred (3), occurs (3), own (3), placed (1), possessed* (1), present (1), pressed* (1), qualify (2), ran (1), reach (3), reached (1), realized (1), receive (1), received (1), remain (9), remain* (1), remained (6), remained* (1), remains (1), rest (1), rested (1), resulted (1), running (1), seemed* (1), serve (3), show (1), sold (1), surely become (1), surely come (1), surely come to pass (1), sustains (1), take (1), take place (3), taken (1), taken place (1), time (1), took place (4), turn (1), turn* (1), turned (4), use (1), used (3), waited (1), wear (1), went (1).
I would say
appeared* (1) could be instant.
am (13) would be even faster.
But all the rest are less than instant.
But a multiple hour time frame is valid, because the same phrase is used here:
Genesis 1:8
HEB: לָֽרָקִ֖יעַ שָׁמָ֑יִם
וַֽיְהִי־ עֶ֥רֶב וַֽיְהִי־
INT: the expanse heaven and there was evening and there was
Genesis 1:8
HEB: וַֽיְהִי־ עֶ֥רֶב
וַֽיְהִי־ בֹ֖קֶר י֥וֹם
INT: and there was evening and there was morning day