@camillak using <eval> to set token might work differently as compared to SPL eval command for relative_time, strftime() and strptime() . Refer to documentation http://docs.splunk.com/Documentation/Splunk/latest/Viz/tokens#Define_token_filtering_and_formatting
For setting the time-tokens in dashboard based on Time Picker input, there are two approaches:
1) Using <eval> to set tokens
2) Use addinfo command in an independent search to set the required token using <done> or <progress> search event handler.
Both the approach are explained with run anywhere example in one of my previous answers: https://answers.splunk.com/answers/578984/running-one-of-two-searches-based-on-time-picker-s.html
Since you need the second approach, please refer to following sample search which displays the required output (you would need to remove the search outside of <row><panel><table> as independent search and set the required tokens using Search Event Handler as per your need.
Following is the Simple XML code for above run anywhere example:
<form>
<label>Tokens Based on Time Picker</label>
<fieldset>
<input type="time" token="tokTime" searchWhenChanged="true">
<default>
<earliest>-24h@h</earliest>
<latest>now</latest>
</default>
</input>
</fieldset>
<row>
<panel>
<table>
<search>
<query>| makeresults
| addinfo
| eval tokTime_earliest="$tokTime.earliest$", tokTime_latest="$tokTime.latest$"
| eval earliestEpoch=case(isnull(info_min_time) OR info_min_time==0 OR info_min_time="", relative_time(now(), "-95d"), isnum(info_min_time), info_min_time, info_min_time=="now", now(), true(), relative_time(now(), info_min_time)),
latestEpoch=case(isnull(info_max_time) OR info_max_time="+Infinity" OR info_max_time=="", now(), isnum(info_max_time), info_max_time, info_max_time=="now", now(), true(), relative_time(now(), info_max_time)),
earliestString=strftime(earliestEpoch, "%T %x"),
latestString=strftime(latestEpoch, "%T %x")
| table tokTime_earliest info_min_time earliestEpoch earliestString tokTime_latest info_max_time latestEpoch latestString</query>
<earliest>$tokTime.earliest$</earliest>
<latest>$tokTime.latest$</latest>
</search>
<option name="refresh.display">progressbar</option>
</table>
</panel>
</row>
</form>
... View more
