Logs from fine creation:

osrfsys.14.log.gz:2017-10-13 14:31:19 brick04-head open-ils.cstore: [INFO:10437:osrf_application.c:1075:15075453305202953] CALL: open-ils.cstore open-ils.cstore.direct.money.billing.create {"__c":"mb","__p":["0.20","2017-10-12T23:59:59-0700","Overdue materials",null,"System Generated Overdue Fine",null,null,null,180950168,1]}
osrfsys.14.log.gz:2017-10-13 14:31:19 brick04-head open-ils.cstore: [INFO:10437:osrf_application.c:1075:15075453305202953] CALL: open-ils.cstore open-ils.cstore.direct.money.billing.create {"__c":"mb","__p":["0.20","2017-10-13T23:59:59-0700","Overdue materials",null,"System Generated Overdue Fine",null,null,null,180950168,1]}

The same billings in the database:

-[ RECORD 5 ]+------------------------------
id           | 232838644
xact         | 180950168
billing_ts   | 2017-10-14 02:59:59-04
voided       | f
voider       |
void_time    |
amount       | 0.20
billing_type | Overdue materials
note         | System Generated Overdue Fine
btype        | 1
-[ RECORD 6 ]+------------------------------
id           | 232838643
xact         | 180950168
billing_ts   | 2017-10-13 02:59:59-04
voided       | f
voider       |
void_time    |
amount       | 0.20
billing_type | Overdue materials
note         | System Generated Overdue Fine
btype        | 1