to the day

to the day

Of a date range, precisely, up to and including the day in question. It's been a year to the day since I left my husband, and I haven't looked back once. They said they would be back in two years to the day to collect repayment for the loan.
Farlex Dictionary of Idioms.

to the ˈday

exactly: It’s ten years to the day since I first came to this town.
Farlex Partner Idioms Dictionary
See also:
  • just another day at the office
  • (just) one of those days
  • from day to day
  • make a day of (doing something)
  • make a day of doing
  • make a day of it
  • day out
  • day by day
  • day of reckoning
  • from one day to the next
References in periodicals archive
The primary caregiver's responsibility is to manage the residents' care needs (e.g., assistance with activities of daily living and medications) and take residents to the Day Spring Program.
FREDERICTON -- Using federal funding the New Brunswick government will add $1.7 million to the Day Care Assistance Program to help more parents access affordable and quality child care.
If the number for the day of the month at the end of the interest period were smaller than the number for the day of the month at the beginning of the interest period, the number of days in the month preceding the month in which the interest period ends would be "borrowed" and added to the day number, and the number for the month at the end of the interest period would be reduced by one.
After "borrowing" 30 days from June (the month before July) to add to the day number at the end of the interest period, and "borrowing" 12 months to add to the month number (reduced by one for the "borrowing" to increase the day number) at the end of the interest period, the interest period would be calculated, as follows:
However, Clarke-Stewart points out one "critical constraint' on her findings: Children were not randomly assigned to the day care programs.