Measuring Time
Calendar days, business days, and working days: the three ways LiveArch counts time, and how they differ.
Overview
LiveArch uses three different ways to count days for due dates and review periods. All three use the same weekday/holiday rules — they differ in whether weekends and holidays count, and in exactly when a “day” changes over. Submittal and RFI review periods, set on the project's Submittals and RFIs settings tabs, are measured in working days.
Key terms
- Calendar day
- Every day counts, including weekends and holidays. The day changes over at midnight Eastern Time — a plain reading of a date on a calendar.
- Business day
- A weekday that isn't a recognized holiday. Weekends and holidays are skipped and don't count toward the total. Like calendar days, the day changes over at midnight Eastern Time.
- Working day
- Like a business day, but the day changes over at 3:00 PM Eastern Time instead of midnight. A document received at 4:00 PM on Friday has missed that working day — the clock effectively starts on the next business day.
Comparing the three
| Calendar day | Business day | Working day | |
|---|---|---|---|
| Counts weekends? | Yes | No | No |
| Counts holidays? | Yes | No | No |
| Day changes over at | Midnight ET | Midnight ET | 3:00 PM ET |
| Used for | Reference only | Reference only | Due dates and days outstanding on RFIs and Submittals |
Example: a Submittal review period starts Thursday at 2:00 PM and ends the following Wednesday at 4:00 PM, with the intervening Monday a recognized holiday. Counting calendar days, six pass — one for every midnight crossed. Counting business days, only three pass — the weekend and the holiday are skipped entirely. Counting working days, four pass — Thursday still counts because 2:00 PM is before the 3:00 PM cutoff, and Wednesday counts because 4:00 PM is after it.
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