orm-hinted="data-platform-hinted"><div class="content sourceset-dependent-content" data-active="" data-togglable=":log4k/commonMain"><div class="symbol monospace"><span class="token keyword">var </span><a href="start-at.html">startAt</a><span class="token operator">: </span><a href="https://kotlinlang.org/api/core/kotlin-stdlib/kotlin.time/-instant/index.html">Instant</a><span class="token operator">?</span></div><div class="brief "><p class="paragraph">The start timestamp of the span, set when the span sta