Do wizards need 24 consecutive hours to write a spell?

@JeremyECrawford Do wizards need 24 consecutive hours to write a spell in the spellbook?

— Alex Clark (@adclark104) December 9, 2015

See the "Your Spellbook" sidebar in the PH for information on copying spells into a spellbook. #DnD https://t.co/PJZYO5LrtE

— Jeremy Crawford (@JeremyECrawford) December 11, 2015