https://central.xero.com/s/question/0D58V00009RmZriSAF/singapore-%F0%9D%94%B8%F0%9D%95%9A%F0%9D%95%A3%F0%9D%95%9D%F0%9D%95%9A%F0%9D%95%9F%F0%9D%95%96%F0%9D%95%A4-checkinpolicy-how-many-hours-before-checkin-%F0%9D%9A%82%F0%9D%9A%92%F0%9D%9A%97%F0%9D%9A%90%F0%9D%9A%8A%F0%9D%9A%99%F0%9D%9A%98%F0%9D%9A%9B%F0%9D%9A%8E