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Hi guys, how can I add a user specified number of hours to the current date ($date)? For example, a user would input "6" and the script will need to add 6 hours to the current date. I have been using the datetime manipulation plugin but I can't seem to make it work. Any ideas?

 

 

Thanks :)

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Scouce http://www.javascriptsource.com/time-date/add-time.html

Put this in a load html, If you need it in a virable your need to pick the java apart


<!-- THREE STEPS TO INSTALL ADD TIME:

  1.  Copy the coding into the HEAD of your HTML document
  2.  Add the onLoad event handler into the BODY tag
  3.  Put the last coding into the BODY of your HTML document  -->

<!-- STEP ONE: Paste this code into the HEAD of your HTML document  -->

<HEAD>

<script type="text/javascript">
<!--
/* This script and many more are available free online at
The JavaScript Source!! http://www.javascriptsource.com
Created by: Sandeep Gangadharan :: http://www.sivamdesign.com/home/ */

function sivamtime() {
  now=new Date();
  hour=now.getHours();
  min=now.getMinutes();
  sec=now.getSeconds();

  if (min<=9) { min="0"+min; }
  if (sec<=9) { sec="0"+sec; }
  if (hour<10) { hour="0"+hour; }

  document.hours.clock.value = hour;
  document.minutes.clock.value = min;
  document.seconds.clock.value = sec;
  setTimeout("sivamtime()", 1000);
}

function sivamtime3() {
  now5=new Date();

  addH = document.addhours.addclock.value;
  addM = document.addminutes.addclock.value;
  addS = document.addseconds.addclock.value;

  hour3 = parseInt(addH) + now5.getHours();
  min3 = parseInt(addM) + now5.getMinutes();
  sec3 = parseInt(addS) + now5.getSeconds();

  if (sec3>=60) { sec3 = -(60 - sec3); min3 = parseInt(min3)+1; }
  if (min3>=60) { min3 = -(60 - min3); hour3 = parseInt(hour3)+1; }
  if (hour3>=24) { hour3 = -(24 - hour3); }
  if (sec3<=9) { sec3="0"+sec3; }
  if (min3<=9) { min3="0"+min3; }
  if (hour3<=9) { hour3="0"+hour3; }
  if ((addS>59) || (addM>59) || (addH>23)) { window.alert('Invalid Input!!'); return false; }
  if ((addS.length > 2) || (addM.length > 2) || (addH.length > 2)) { window.alert('Invalid Input!!'); return false; }
  if ((addS.indexOf('-') != -1) || (addM.indexOf('-') != -1) || (addH.indexOf('-') != -1)) { window.alert('Invalid Input!!'); return false; }

  document.hours1.clock1.value = hour3;
  document.minutes1.clock1.value = min3;
  document.seconds1.clock1.value = sec3;
  setTimeout("sivamtime3()", 1000);
}
-->
</script>
</HEAD>

<!-- STEP TWO: Insert the onLoad event handler into your BODY tag  -->

<BODY onLoad="sivamtime()">

<!-- STEP THREE: Copy this code into the BODY of your HTML document  -->

<table border="5" align="center" cellpadding="0" cellspacing="0" width="160" bgcolor="#cccccc">
   <tr>
    <td>
      <table border="0" align="center" cellpadding="0" cellspacing="0" width="80">
        <tr>
          <td align="center" colspan="3"><br />
            <font face="verdana, arial, helvetica, sans-serif" size="1">
              Current Time:
            </font>
          </td>
        </tr>
        <tr>
          <td>
            <form name="hours">
              <p><input type="text" size="2" name="clock" /></p>
            </form>
          </td>
          <td>
            <form name="minutes">
              <p><input type="text" size="2" name="clock" /></p>
            </form>
          </td>
          <td>
            <form name="seconds">
              <p><input type="text" size="2" name="clock" /></p>
            </form>
          </td>
        </tr>
      </table><br />

      <table border="0" align="center" cellpadding="0" cellspacing="0" width="150">
        <tr>
          <td align="center">
            <font face="verdana, arial, helvetica, sans-serif" size="1">
              Add Hours:
            </font>
          </td>
          <td align="center">
            <font face="verdana, arial, helvetica, sans-serif" size="1">
              Add Minutes:
            </font>
          </td>
          <td align="center">
            <font face="verdana, arial, helvetica, sans-serif" size="1">
              Add Seconds:
            </font>
          </td>
        </tr>
        <tr>
          <td align="center">
            <form name="addhours">
              <input type="text" size="2" value="00" name="addclock" />
            </form>
          </td>
          <td align="center">
            <form name="addminutes">
              <input type="text" size="2" value="00" name="addclock" />
            </form>
          </td>
          <td align="center">
            <form name="addseconds">
              <input type="text" size="2" value="00" name="addclock" />
            </form>
          </td>
        </tr>
        <tr>
          <td align="center" colspan="3">
            <form>
              <input type="button" value="Get Time"  onClick="sivamtime3()" style="font-size: 9pt" />
            </form>
          </td>
        </tr>
      </table>

      <table border="0" align="center" cellpadding="0" cellspacing="0" width="80">
        <tr>
          <td align="center" colspan="3">
            <font face="verdana, arial, helvetica, sans-serif" size="1">
              Scheduled Time:
            </font>
          </td>
        </tr>
        <tr>
          <td>
            <form name="hours1">
              <input type="text" size="2" name="clock1" />
            </form>
          </td>
          <td>
            <form name="minutes1">
              <input type="text" size="2" name="clock1" />
            </form>
          </td>
          <td>
            <form name="seconds1">
              <input type="text" size="2" name="clock1" />
            </form>
          </td>
        </tr>
      </table>
    </td>
  </tr>
</table>

<p><center>
<font face="arial, helvetica" size"-2">Free JavaScripts provided<br>
by <a href="http://javascriptsource.com">The JavaScript Source</a></font>
</center><p>

<!-- Script Size:  6.07 KB -->
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I think you should convert $date to UNIX timestamp first and add the number of hours (converted into seconds). When those two numbers are added, convert the result back from UNIX to UBOT DATE.

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I think you should convert $date to UNIX timestamp first and add the number of hours (converted into seconds). When those two numbers are added, convert the result back from UNIX to UBOT DATE.

 

I created my own function, instead, but if mine doesn't work as expected, I will definitely try your suggestion. Thanks :)

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I think you should convert $date to UNIX timestamp first and add the number of hours (converted into seconds). When those two numbers are added, convert the result back from UNIX to UBOT DATE.

 

This one seems to be the best and easiest solution than my complicated function LOL! Thank you for your help :)

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