Solved

Time math in Access

Posted on 2016-07-21
2
59 Views
Last Modified: 2016-07-21
I have a field that is a sum of time formatted hh:nn:ss. The time represents time out. I need to get a percentage of availability over 59 days, which should be 1416:00:00 hours. So I need 1416;00:00-totaltime/1416:00:00. Can't seem to get this to work correct from an Access query. I'm sure it's a syntax issue.
0
Comment
Question by:dgravitt
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 37

Accepted Solution

by:
PatHartman earned 500 total points
ID: 41723557
I'm not sure I understand what you are looking for but a DateTime field represents a point in time, not an accumulation of time.  Access will only show up to 24 hours if you are trying to format the DateTime field.  If you need something different, you will need to create your own function.  Dates are stored as double precision numbers with the whole number being the number of days since 12/30/1899 and the decimal counting time since midnight.

print now()
7/21/2016 2:01:31 PM
print cdbl(#7/21/2016 2:01:31 PM#)
 42572.5843865741

so 2:01:31 = .5843865741 and 42572 = 7/21/2016

Once you add more than 24 hours, you start increasing the integer
0
 

Author Closing Comment

by:dgravitt
ID: 41723596
thanks
0

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Describes a method of obtaining an object variable to an already running instance of Microsoft Access so that it can be controlled via automation.
Phishing attempts can come in all forms, shapes and sizes. No matter how familiar you think you are with them, always remember to take extra precaution when opening an email with attachments or links.
Familiarize people with the process of utilizing SQL Server stored procedures from within Microsoft Access. Microsoft Access is a very powerful client/server development tool. One of the SQL Server objects that you can interact with from within Micr…
Basics of query design. Shows you how to construct a simple query by adding tables, perform joins, defining output columns, perform sorting, and apply criteria.

738 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question