ColdFusion DateTimeFormat() Utility Function
Posted May 22, 2007 at 7:31 AM by Ben Nadel
I love ColdFusion's DateFormat() and TimeFormat() functions; they are hugely useful. And, most of the time, I use them independently of each other. But, often enough, I use DateFormat() followed by TimeFormat(). Wouldn't it be cool if ColdFusion had a DateTimeFormat() function that would accept both a date and a time mask? I think it would be, and here's what it might look like:
- hint="Formats the given date with both a date and time format mask.">
- <!--- Define arguments. --->
- hint="The date/time stamp that we are formatting."
- hint="The mask used for the DateFormat() method call."
- default="h:mm TT"
- hint="The mask used for the TimeFormat() method call."
- default=" at "
- hint="This is the string that goes between the two formatted parts (date and time)."
- Return the date/time format by concatenating the date
- and time formatting separated by the given delimiter.
- <cfreturn (
- ) &
- ARGUMENTS.Delimiter &
- ) />
Using the above ColdFusion user defined function, you could easily format date/time values:
- DateTimeFormat called with all possible
- defaulted arguments.
- DateTimeFormat called with explicit date
- and time masks and default delimiter.
- "mmm d, yyyy",
- "h:mm TT"
- DateTimeFormat called with explicit date and
- time masks as well as an explicit delimiter.
- "mmm d, yyyy",
- "h:mm TT",
- " at the time of "
The above code would give us the following output:
22-May-2007 at 7:24 AM
May 22, 2007 at 7:24 AM
May 22, 2007 at the time of 7:24 AM
I'm sure this has been done before, but I just really hope that one day Adobe adds it to the ColdFusion built-in function list.
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Yup, Ray did it back in 2001 and has it on his cflib.org site http://www.cflib.org/udf.cfm?ID=134
cflib.org hasn't got much press lately and it's easy to forget the wealth of udf's on the site.
It's funny, right after I posted this, I did a quick Google search to see if this was out there already (as I assumed it was) and there it was, CFLib as the second search result.
2001... I guess that means I'm only 6 years behind the Jedi :) The force is weak with me.
Heh, people _do_ forget about CFLib, so it is no big deal. ;) I need to get off my ass and release that new version that I've been talking about since 2004. ;)
Ben, good job anyway. If nothing else you made me aware of the existing function at cflib. Thanks!
Some of the best meals I have ever eaten were cooking over many many hours... that doesn't exactly translate to web sites, other than to say, good things are worth the wait.
Are you ever going to just integrate cflib into riaforge?
No plans. I really look at RIAForge as more for 'projects', not single CFCs/UDFs/tags. Now that is NOT official RIAForge policy. Shoot, even I have a single CFC up there I believe. But in GENERAL those are my thoughts. (Have to treat carefully here. I admin both sites, but Adobe is the official owner of RIAForge. Etc etc etc.)
Thanks a lot Ben this was really helpful.
Changed the Defaults to mm/dd/yyyy HH:mm:ss
It worked like a charm.
Glad you are finding this useful.
Thanks for the function to format date and time together. However I found a similar method if you just want to display the date and time.
By doing this:
#dateformat(created_date, "dd-MMM-yyyy")# #timeformat(created_date, "h:mm:ss tt")#
Hope this helps out.
This function was actually meant to replace having to use two functions separately. But, of course, you should use which ever you prefer.
Hey I have a quick question for you regarding coldfusion date/time... pretty much I'm working on an employee portal and I want the timestamps for their posts to a bulletin board to be formatted to their timezone. I have their timezones saved according to their useraccounts (database) and now I'm trying to do the logic to do the math to display the correct time of the post in the database based on where in the world they're located. I keep getting the times an hour off. When the date/time stamp is saved to the database in a new post, I use the dateformat and timeformat. Are those two functions pulling the coldfusion server time or the computer's local clock time? If it's the server time, how do I figure out what the server time (or even timezone of the server) actually is using CF code? Thanks Ben! - Justin
A very old post this is, but for anyone that stumbles onto it as I just did...
I had created my own DateTimeFormat function (global function in CFWheels) in my last couple of projects (great minds think alike...).
We're in the process of upgrading to CF10 enterprise, and when running the code analyzer, along with a few other CFWheels-related issues, I was notified that my UDF now conflicts with the new internal DateTimeFormat() function within CF itself. Added in CF10... so now "I Gots Tuh Modifiez Muh Code."