Using date and time fields on your search form
You might want to include a date and time field on a search form that you create for your users. For example:
From Date: 
If you use the date and time in a filter query, send a normalized value (not the original date and time string) through the filter. The normalized value is the same as the value on the AR System server. (The date and time in the previous example is November 23, 2009, 12:00:00 A.M.)
To normalize the date and time value
- Include a hidden integer field on the form.
- If you have an event that constructs your filter query, create a Set Fields active link that copies the value of the date and time field to the hidden integer field.
This causes the client to convert the date and time string to the appropriate integer value, which takes into account the locale and time zone of the client and normalizes it to the date and time used by the server, for example:
- Use the value of the hidden integer for the value of the date that you are passing.
The resulting filter query would look something like this:
'modifiedTime' >= "1250143200"