Well, it really depends on the line of work one is involved in.
If it's rigid, tough luck. You'll probably have to report to work by the end of the public holidays. But most employers are more considerate. They will give days off if it can be arranged. Generally, it is a gradual process to return to the work mood.
Back to Valentine's Day, which falls on the seventh day of the lunar year in 2016. This means many couples are on the way back from their journeys home. If it were the 10th day, the sales of roses would have been much higher, or I guess.
Last year, Valentine's Day was five days before the Chinese New Year and, in 2010, it coincided with the biggest day on the Chinese calendar. Statistically, most Valentine's Days are outshone by the colorful illumination of red lanterns and dazzling fireworks.
Of course, the two holidays are not direct competitors, so there is no reason they cannot coexist.
It is just that a month and half earlier there is another imported and localized holiday which pretty much steals the thunder-or shall I say the appeal-of the occasion.
Christmas.