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12.48 Set Date & Time Ext (77h)
This command sets the Date and Time TimeStamp device statistic to the value in the Timestamp field (see Section
12.21.3.2). The host should set the Timestamp field to the current date and time in milliseconds using January 1,
1970 UT 12:00 am as the baseline. The Timestamp field has a range from January 1, 1970 to approximately January
1, 10895
Table 205 Set Date & Time Ext Command (77h)
Command Input
Field
Description
FEATURE
Reserved
COUNT
Reserved
LBA
Bit Description
47:0 Timestamp Field
Bit Description
DEVICE
7 Obsolete
6 N/A
5 Obsolete
4 Transport Dependent
3:0 Reserved
Command
7:0 77h
Normal Outputs
See Normal Outputs in Section 12.7 Flush Cache (E7h)
Error Outputs
See Error Outputs in Section 12.12 Idle (E3h / 97h)
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Hard Disk Drive Specification