When to open for business or start work in the year 2021? 13th February = 2nd Lunar Day 15th February = 4th Lunar Day ++ 17th February = 6th Lunar Day 19th Februrary = 8th Lunar Day ** 21st February = 10th Lunar Day 23rd February = 12th Lunar Day 25th February = 14th Lunar Day ++ Note: Some Chinese especially the Cantonese dialect group may simply skip any number with a 4 in it.