] to _isoDate_.
        1. Set _object_.[[Calendar]] to _calendar_.
        1. Return _object_.
      </emu-alg>
    </emu-clause>

    <emu-clause id="sec-temporal-totemporaldate" type="abstract operation">
      <h1>
        ToTemporalDate (
          _item_: an ECMAScript language value,
          optional _options_: an ECMAScript language value,
        ): either a normal completion containing a Temporal.PlainDate or a throw completion
      </h1>
      <dl class="header">
        <dt>description</dt>
 