Creating a new calendar event puts the start date as today's date

Question

When I click the +Add button on my calendar the start/end date/time is being set to the current date instead of the date that I'm clicking on.

I believe this has to do with a script I added that converts all of my events into All Day Events. This is the script:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
_spBodyOnLoadFunctionNames.push("ready");
function ready()
{
  // checks All Day Event
    if (!$('span[title="All Day Event"] > input').attr("checked"))
    {
    $('span[title="All Day Event"] > input').click();
    }
  //hide check-box
  $('tr:has(span[title="All Day Event"])').not('tr:has(tr)').hide();
  //$('nobr:contains("All Day Event")').closest('tr').hide();
}
</script>

How can I modify this script so that the date that I'm clicking on is the date that is pre-populated in the start/end date fields?

Answer 1

No need to use the JS code to hide the All Day Event column. Follow below steps to achieve this:

1. Go to List Settings.
2. Enable Allow management of content types to Yes - Check the steps here.
3. Under Content Types section, select Event.

4. Click on Title column.

   URL will be something like: https://tenant.sharepoint.com/sites/sitename/_layouts/15/ManageContentTypeField.aspx?ctype=0x010200189C60E5DFC1BE479C71F3FE15FE12D3&List=2f1c8ffd-1abf-49c0-9b9c-090512e4ea03&Field=Title&Fid=%7Bfa564e0f%2D0c70%2D4ab9%2Db863%2D0177e6ddd247%7D

5. Remove Fid Parameter (delete everything after Field=Title).

6. Replace Field Parameter value with fAllDayEvent (Replace Title with fAllDayEvent).

   Now your URL should look something like: https://tenant.sharepoint.com/sites/sitename/_layouts/15/ManageContentTypeField.aspx?ctype=0x010200189C60E5DFC1BE479C71F3FE15FE12D3&List=2f1c8ffd-1abf-49c0-9b9c-090512e4ea03&Field=fAllDayEvent

7. Select Hidden.
8. Click OK.

This will hide the All Day Event from all list forms.

Additionally, If you don't want today's date as a default value of your columns then set it to None.

Update:

To resolve the issue mentioned in below commetns, try adding some delay/timeout to execute your script like given below (I have set it to 3 seconds. you can change it by doing some trial and error on your end):

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"></script>
<script type="text/javascript">
    _spBodyOnLoadFunctionNames.push("ready");
    function ready() {      
        setTimeout(function(){
            // checks All Day Event
            if (!$('span[title="All Day Event"] > input').attr("checked")) {
                $('span[title="All Day Event"] > input').click();
            }
            //hide check-box
            $('tr:has(span[title="All Day Event"])').not('tr:has(tr)').hide();
            //$('nobr:contains("All Day Event")').closest('tr').hide();
        }, 3000);
    }
</script>