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 FileMaker Pro Custom Functions

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UTCOffset

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  Average rating: 4.8  (13 votes)
  Discuss this Custom Function

Jeremy Bante,
https://github.com/jbante/

Returns the offset from UTC of the current device clock

Sample Input:
// Called from U.S. EST (New York) time zone

List (
GetUTCOffset;
Get ( CurrentTimestamp );
GetAsTimestamp ( Get ( UTCmSecs ) / 1000 + GetUTCOffset )
)
Sample Output:
-14400
05-18-2012 17:04:31
05-18-2012 17:04:31.062


 Then copy & paste into FileMaker Advanced's Edit Custom Function window.

Click here to copy To Clip Manager if you have myFMbutler's Clip Manager installed

Description:

Returns the offset from UTC of the current device clock, in seconds. This can be used for establishing the time zone a device is operating in.

Note: these functions are not guaranteed or supported by BrianDunning.com. Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it

Discuss:

Thanks, this was really handy.

One improvement: Using floor is better than using round, otherwise you'll be off by one second 50% of the time.

Jesse Barnum, Atlanta, GA
April 03, 2014 4:50am

Sounds reasonable enough. Done!

Jeremy, USA
April 03, 2014 6:17am

Not sure if I'm doing something wrong hereā€¦ I'm getting results that are seemingly 1 hour off. I'm in Central Standard Time (CST).

Get(CurrentTimestamp) = 10/13/2015 9:00:00 PM
UTC Timestamp = 10/14/2015 3:00:00 AM
Difference = 6 hours

But, when I apply the UTCOffset CF to the UTC timestamp, it brings it back to 10 PM, which is only 5 hours difference. Is there a daylight savings issue going on or something?

Matt Larson, Cimbura.com
October 13, 2015 7:01pm

Nevermindā€¦ I was looking at a map that told me to subtract 6 hours when apparently the correct UTC is 5 hours for me. Daylight savings issue or something. Your custom function is working correctly, and perfectly for me, now that I solved my root problem!

Matt Larson, Cimbura.com
October 16, 2015 1:08pm

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