I just double checked this by looking at my turns in Tournament exactly 25 hours after the round started.
Here is my status showing 49 turns

Turns (Stored) 49 (0) Government Republic

Population 1756 Troops 0
Land 160 Acres Jets 0
Money $71,084 Turrets 0
Food 200 Bushels Tanks 0
Oil 0 Barrels Spies 0
Networth $8930 CM/NM/EM 0/0/0
Rank 3 Brigades 5 Available

Bonuses 2.8 hours Server Tournament

Current Time: 01:02:05 Dec 3, 2013
Next turn: 7.9 mins

Here are my turns taken: =19
Turns Left 50
Turns Taken 19
Turns Stored 0
Rank 4
Networth $8930
Land 160
Money $71,084
Population 1756
At War No
GDI Member Yes

Here is my news showing 12 bonus turns:
7.9 mins ago
You have been granted 6 bonus turns!

7.9 mins ago
You were given a daily bonus of 20 extra acres.

9.7 hours ago
Thank you for voting for Earth Empires on Top 100 Arena. You have been granted 2 bonus points!

13.2 hours ago
Thank you for voting for Earth Empires on Browser Game List. You have been granted 4 bonus points!

18.2 hours ago
You were given a daily bonus of 20 extra acres.

19.2 hours ago
Thank you for voting for Earth Empires on BBOGD. You have been granted 2 bonus points!

1 days ago
You were given a daily bonus of 20 extra acres.


25hrs*60min/25min = 60 turns
60 +12 bonus turns = 72 turns
72 turns - (49+19) turns actual =
=> 72 - 68 = 4 turns missing