"Marina's affair with Demon Veen started on his,
her, and Daniel Veen's birthday, January 5, 1868, when she was twenty-four and
both Veens thirty." (Ada, Part One, 2). January 5 was, I believe, Vera Nabokov's
birthday.
Rather "late in the day," since it's already
January 6 (4.30 am) here.
Alexey Sklyarenko