The periods of work of an adult worker in a factory shall be so arranged that inclusive of his intervals for rest under section 55, they shall not spread over more than ten and a half hours in any day: Provided that the Chief Inspector may, for reasons to be specified in writing increase the 1[spread over up to twelve hours].
<span style="margin-left:15px;"></span>The periods of work of an adult worker in a factory shall be so arranged that inclusive of his intervals for rest under section 55, they shall not spread over more than ten and a half hours in any day:<br> <span style="margin-left:15px;"></span> Provided that the Chief Inspector may, for reasons to be specified in writing increase the <sup>1</sup>[spread over up to twelve hours].<br><br>