The ⚀biqua·timel, or ⚀quadcia·day, or ⚀lull

Quantitytime
Formal name⚀biqua·timel
Formal abbr⚀b↑tmℓ
Colloquial name⚀lull
ell·time
Colloquial abbr⚀lu
·tm
Derivationquadcia·day
Derivation abbrq↓dy
Deprecated namegrovic
TGM equiv= bina·unqua·Tim
TGM equiv abbr= b•u↑Tm
SI & USC equiv= 4.2z|4.16d seconds
Precision spec= 38,302,632,375d caesium·periods
= 7,50Ɛ,583,273z caesium·periods
= 7.50Ɛ583273z ennqua·caesium·periods 
scaling01:01:+:02:1.0

The ⚀biqua·timel (102⚀timels) is equivalent to the quadcia·day (10−4⚀days). This comes out to (50/12)d of a second (4.2z|4.16d s). In the past, dozenalists have called this unit the "grovic" (short for "a gross of vics"). Primel endeavors to be a bit more creative. A ⚀biqua·timel  counts out a dozen ⚀twinklings in slightly over four seconds. Primel proposes to nickname this interval the ⚀lull, since a gap of this duration between utterances would be perceived as a (possibly embarrassing) lull in the conversation.