USING
When it comes to USING vacation, chess.com calculates the total vacation time used = time spent on vacation * number of games on which it is your move.
If you are on vacation for 12 hours, and you have 10 games in progress on which it is YOUR MOVE, then the total vacation time you use up will be 10 x 12 hours = 5 days.
Nope. The time you've spent on vacation is not multiplied by the number of games. If you take a 12 hour vacation, you will be charged 12 hours; whther you have ten ongoing games or one.
VACATION on chess.com is a little complicated. As far as I know, it works like this:
ACCUMULATING
In outline, this is the scheme for ACCUMULATING vacation entitlement:
All new Chess.com accounts start out with 7 days of vacation time.
All Chess.com accounts get 2 extra days per month, up to a maximum of 30 per year.
Gold: 1 extra day per month if renewed monthly; 14 extra days if renewed yearly.
Diamond/Platinum: 2 extra days per month if renewed monthly; 28 extra days if renewed yearly.
(There are slight variations depending on whether you pay monthly or annually, but they are not very significant.)
We have this situation (assuming no vacation has been taken):
Vacation Time
Basic
Gold
Platinum
Diamond
after 1 year
7+24= 30 Days
7+36= 43 Days
7+48= 55 Days
7+48= 55 Days
After 15 Months
30 Days
52 Days
67 Days
67 Days
After 18 Months
30 Days
60 Days
79 Days
79 Days
After 2 Years
30 days
60 Days
90 Days
90 Days
After 3 Years
30 days
60 Days
90 Days
90 Days
After 4 Years
30 days
60 Days
90 Days
90 Days
USING
When it comes to USING vacation:
If you are on vacation for 12 hours, regardless of how many games in progress on which it is YOUR MOVE, the total vacation time you use up will still be 12 hours
NOTIFYING
Suppose you are a GOLD member, and you have accrued the maximum of 60 days (and not used any). When you put yourself on vacation, each of your opponents (when it is your turn to move), will see a message like this:
XYZ is currently on vacation!
"XYZ's status message"
They have 1 month 29 days of vacation time left, but may be back sooner.
When XYZ returns from vacation (after 12 hours), - before he switches vacation mode OFF - the message his opponents should see is:
XYZ is currently on vacation!
"XYZ's status message"
They have 1 month 28 days of vacation time left, but may be back sooner.
Note that minimum vacation duration in now 24 hours.