In Singapore, rumours that the Ministry of Manpower had declared a voluntary non-work day appeared on the evening of Thursday, September 24. 2015 as the Pollutant Standards Index (PSI) was 313-341 in the Hazardous range after 7pm-5am. The Ministry of Manpower lodged a police report over a hoax post on social media (WhatsApp or Facebook) that claimed it had declared a "voluntary non-work day" on Friday, September 25, 2015 as a result of the haze. - this Hoax is part of the Hoaxes in Singapore.
References
2015 Voluntary non-work day Wikipedia(Text) CC BY-SA