it is in the trans.log when using appropriate software to read a trans.log, it outputs it to a text file which shows date, time, check number, etc. An example is below.
1 Term: 1 Type: NEW LOG 02:00:44 AM Fri Oct 25, 2013 [ 0] ( 27)
Version: 6.4.19.1463 Gen #: 12 (QuickService) (Release Version)
2 Term: 1 Type: CLEAR ORDER LOCK 02:09:04 AM Fri Oct 25, 2013 [ 40] ( 4)
3 Term: 1 Type: TERMINAL UP 02:09:08 AM Fri Oct 25, 2013 [ 57] ( 54)
Term: 1 Gen #: 12 Version: 6.4.19.146
4 Term: 2 Type: TERMINAL UP 02:09:13 AM Fri Oct 25, 2013 [ 124] ( 54)
Term: 2 Gen #: 12 Version: 6.4.19.146
5 Term: 2 Type: LOG IN 09:51:00 AM Fri Oct 25, 2013 [ 191] ( 22)
Employee 802 Term: 2
6 Term: 2 Type: CLOCK IN 09:51:00 AM Fri Oct 25, 2013 [ 226] ( 76)
Employee 802: Shift 0: IN: 9:51 OUT: 0:00 RATE: 0.00 JOB: 9
7 Term: 2 Type: OPEN TABLE 09:51:00 AM Fri Oct 25, 2013 [ 315] ( 53)
Employee 802 TDef: 0 Id: 2097153 Size: 1 Type:0 Name:
8 Term: 2 Type: ADD CHECK 09:51:00 AM Fri Oct 25, 2013 [ 381] ( 35)
Employee 802 Table: 2097153 Check: 2097153 Number:0 Queue:1
9 Term: 2 Type: NO SALE 09:53:39 AM Fri Oct 25, 2013 [ 429] ( 28)
Manager 802 Employee 802 Drawer:2 Reason:1
10 Term: 2 Type: LOG OUT 10:10:30 AM Fri Oct 25, 2013 [ 470] ( 18)
Employee 802 Term: 2
11 Term: 2 Type: LOG IN 10:10:34 AM Fri Oct 25, 2013 [ 501] ( 22)
Employee 802 Term: 2
12 Term: 2 Type: ASSIGN DRAWER 10:10:37 AM Fri Oct 25, 2013 [ 536] ( 22)
Manager 802 Employee 802 Drawer: 2
13 Term: 2 Type: BEGIN ORDER 10:10:38 AM Fri Oct 25, 2013 [ 571] ( 28)
Employee:802 Queue:1 Table:2097153 Check:2097153
14 Term: 1 Type: ORDER NUMBER 10:10:39 AM Fri Oct 25, 2013 [ 612] ( 14)
Queue:1 Table: 2097153 Preceeding: 0 Number:100
15 Term: 2 Type: ITEM INFO 3 10:10:45 AM Fri Oct 25, 2013 [ 639] ( 90)
1 of 1, containing 1 items for next DELETE ITEMS txn (Aux 0)
Entry Type Menu Mode Prt Vid Trm Seat Tax Tax2 Splt Price Data Lvl MC
2097173 | 0 | 21 | 80 | 15 | 0 | 2 | 0 | 1 | 0 | 0 | 5.99 | 5120 | 0 | 0
16 Term: 2 Type: DELETE ITEMS 10:10:45 AM Fri Oct 25, 2013 [ 742] ( 33)
Manager 802 Employee 802 Table: 2097153 Check: 2097153 Reason: 0
17 Term: 2 Type: ORDER MODE 10:11:03 AM Fri Oct 25, 2013 [ 788] ( 20)
Employee: 802 Queue: 1 Order: 2097153 Mode: 2 Reason: 0
18 Term: 2 Type: ITEM INFO 3 10:11:03 AM Fri Oct 25, 2013 [ 821] (505)
1 of 1, containing 6 items for next ORDER ITEMS txn (Aux 0)
Entry Type Menu Mode Prt Vid Trm Seat Tax Tax2 Splt Price Data Lvl MC
2097202 | 0 | 21 | 2 | 15 | 0 | 2 | 0 | 1 | 0 | 0 | 5.99 | 5120 | 0 | 0
0 | 34 | 0 | 5120 | 1 | 15 | 1 | 0 | 0 | 14030454 | 2 | -0.00 | 3 | 0 | 1
0 | 66 | 16777216 | 3 | 256 | 1 | 21 | 0 | 15 | 658511861 | 1 | 0.00 | 570433536 | 20 | 0
14030454 | 0 | 0 | 570433536 | 512 | 256 | 0 | 0 | 1 | -2061584303 | 18 | 0.00 | 1711276032 | 0 | 15
658507755 | 0 | 0 | 1962934272 | 2595840 | 512 | 33554432 | 0 | 256 | 171965194 | 0 | 0.00 | 0 | 32 | 1
1030792151 |118 | 16777473 | 0 | 802 | 315904 | 0 | 0 | 512 | 0 | 0 | 0.00 | 54806 | 0 | 0
19 Term: 2 Type: ORDER ITEMS 10:11:03 AM Fri Oct 25, 2013 [ 1339] ( 49)
Employee 802 Table: 2097153 Check: 2097153 Mode:2 Printed:1
20 Term: 2 Type: UNKNOWN 461 10:11:03 AM Fri Oct 25, 2013 [ 1401] (381)
21 Term: 2 Type: UNKNOWN 462 10:11:03 AM Fri Oct 25, 2013 [ 1795] ( 10)
22 Term: 2 Type: UNKNOWN 461 10:11:09 AM Fri Oct 25, 2013 [ 1818] (342)
23 Term: 2 Type: UNKNOWN 462 10:11:09 AM Fri Oct 25, 2013 [ 2173] ( 10)
24 Term: 2 Type: APPLY PAYMENT 10:11:09 AM Fri Oct 25, 2013 [ 2196] (328)
Employee 802 Table: 2097153 Check: 2097153 Payment: 2097153
Type: 9 Amt: 24.70 Tip: 0.00 CashBack: 0.00 'Ident':'' Exp: Auth:
25 Term: 1 Type: UNKNOWN 461 10:11:12 AM Fri Oct 25, 2013 [ 2537] (319)
26 Term: 1 Type: UNKNOWN 462 10:11:12 AM Fri Oct 25, 2013 [ 2869] ( 10)
27 Term: 1 Type: AUTH 10:11:12 AM Fri Oct 25, 2013 [ 2892] (538)
Employee 802 Table: 2097153 Check: 2097153 Payment: 2097153 GiftCard: 0
Mgr: 0 Code:2 Auth:051113 Reason:APPROVED Type:11
User:0 File number:10000 Ref:317 Trans:
AuthAmt: 24.70 AuthAmtFC: 0.00 CashBack: 0.00 Balance: 0.00
28 Term: 2 Type: PRINT CHECK 10:11:11 AM Fri Oct 25, 2013 [ 3443] ( 28)
Employee 802 Table: 2097153 Check: 2097153
29 Term: 2 Type: OPEN TABLE 10:11:11 AM Fri Oct 25, 2013 [ 3484] ( 53)
Employee 802 TDef: 0 Id: 2097154 Size: 1 Type:0 Name:
30 Term: 2 Type: ADD CHECK 10:11:11 AM Fri Oct 25, 2013 [ 3550] ( 35)
Employee 802 Table: 2097154 Check: 2097154 Number:0 Queue:1
31 Term: 2 Type: CLOSE CHECK 10:11:11 AM Fri Oct 25, 2013 [ 3598] ( 55)
Employee 802 Table: 2097153 Check: 2097153
32 Term: 2 Type: CLOSE TABLE 10:11:11 AM Fri Oct 25, 2013 [ 3666] ( 24)
Employee 802 Table: 2097153 Guests:1 Period:1 Training:0
33 Term: 1 Type: LOG IN 10:20:59 AM Fri Oct 25, 2013 [ 3703] ( 22)
Employee 4444 Term: 1
34 Term: 1 Type: CLOCK IN 10:21:00 AM Fri Oct 25, 2013 [ 3738] ( 76)
Employee 4444: Shift 0: IN: 10:21 OUT: 0:00 RATE: 0.00 JOB: 17
35 Term: 1 Type: OPEN TABLE 10:21:00 AM Fri Oct 25, 2013 [ 3827] ( 53)
Employee 4444 TDef: 0 Id: 1048577 Size: 1 Type:0 Name:
36 Term: 1 Type: ADD CHECK 10:21:00 AM Fri Oct 25, 2013 [ 3893] ( 35)
Employee 4444 Table: 1048577 Check: 1048577 Number:0 Queue:1
37 Term: 2 Type: BEGIN ORDER 10:35:19 AM Fri Oct 25, 2013 [ 3941] ( 28)
Employee:802 Queue:1 Table:2097154 Check:2097154
38 Term: 1 Type: ORDER NUMBER 10:35:20 AM Fri Oct 25, 2013 [ 3982] ( 14)
Queue:1 Table: 2097154 Preceeding: 2097153 Number:101