How to get tomorrow's date and next week's number for use in Tasker

I've figured it out, I had to learn to use Tasker a bit, the solution is a little awkward but it probably should be done this way in Tasker.

The most important variable for such datetime manipulations in Tasker is a global variable %TIMES which contains current time in seconds - so it is a big long integer number.

Adding e.g. 30 days to it means you need to Set variable (with Math on) like this:

%TIMES + (30 * 86400)

Tommorow is:

%TIMES + (1 * 86400)

The main problem is, that you have to convert the value to a formatted datetime string. As I understood it there is no built in command for that in Tasker.

You need to create JavaScriptlet task step for that and paste there the code from this page:

<TaskerData sr="" dvi="1" tv="4.1b1m">


 <Task sr="task54">


  <cdate>1340586441681</cdate>


  <edate>1369445351826</edate>


  <id>54</id>


  <nme>getFormattedDate</nme>


  <pri>10</pri>


  <rty>2</rty>


  <Action sr="act0" ve="3">


<code>129</code>


<Str sr="arg0" ve="3">var gsMonthNames = new Array(

'January',

'February',

'March',

'April',

'May',

'June',

'July',

'August',

'September',

'October',

'November',

'December'

);




var gsDayNames = new Array(

'Sunday',

'Monday',

'Tuesday',

'Wednesday',

'Thursday',

'Friday',

'Saturday'

);




var d = new Date(par[0] * 1000);


var f = par[1];



var formatteddate = f.replace(/(yyyy|yy|mmmm|mmm|mm|dddd|ddd|dd|hh|nn|ss|a\/p)/gi,


 function($1)


 {



  switch ($1)


  {



  case 'yyyy': return d.getFullYear();



  case 'yy':
return ('0' + d.getFullYear()).slice(-2);



  case 'mmmm': return gsMonthNames[d.getMonth()];


  case 'mmm':  return gsMonthNames[d.getMonth()].slice(0,3);



  case 'mm':
return ('0' + (d.getMonth() + 1)).slice(-2);



  case 'dddd': return gsDayNames[d.getDay()];


  case 'ddd':  return gsDayNames[d.getDay()].slice(0,3);



  case 'dd':
return ('0' + d.getDate()).slice(-2);



  case 'hh':
return ('0' + ((h = d.getHours() % 12) ? h : 12)).slice(-2);



  case 'HH':
return ('0' + d.getHours()).slice(-2);



  case 'nn':
return ('0' + d.getMinutes()).slice(-2);



  case 'ss':
return ('0' + d.getSeconds()).slice(-2);



  case 'a/p':  return d.getHours() &lt; 12 ? 'a' : 'p';


  
}



 
}


);
</Str>


<Str sr="arg1" ve="3">45</Str>


<Int sr="arg2" val="1"/>


<Int sr="arg3" val="45"/>


  </Action>


  <Action sr="act1" ve="3">


<code>126</code>


<Str sr="arg0" ve="3">%formatteddate</Str>


<Int sr="arg1" val="1"/>


  </Action>


 </Task>

</TaskerData>

before that Javascriptlet step you insert 2 steps where you set two input variables %par1 (contains datetime in seconds form previous step) and %par2 (contains yyyymmdd - date format).

The formatted date string is available then in %formatteddate variable.

As for getting the next week:

• Run Shell date -d +"%Y" to %year


• Run Shell date -d +"%V" to %week


• Set variable %week to %week + 1 (Do Maths On)


• Set variable %year to %year + 1 (Do Maths On) (If %week > 52)


• Set variable %week to 1 (If %week > 52)


• The yyyyww.htm of the next week can then be written as %year%week.htm