As at 10 December 2556 the Company's Constitution requires a public holiday. Accordingly, the Company changed the holiday from December 10th 2556 to January 3rd, 2557 was the day they let the staff know.
Since the December 10 match 2556 (2013) Constitution Day was designated as a public holiday so that the company would change from 10 day vacation. Therefore, instead of December as January 3, 2014, 2556 (2013) employee acknowledge.
As December 10 , 2556 matches the constitution day the company has designated as public holidays, so the company request to change from Holiday December 10 , 2556 is a January 3 , 2557 instead, inform employees to acknowledge