readDatetime
Read the date and time on the device (asynchronous).
Parameters
callback
the asynchronous callback.
Read the date and time on the device (synchronous).
Return
The response.
Throws
Transport error. See cause.
Read the date and time on the device (asynchronous).
the asynchronous callback.
Read the date and time on the device (synchronous).
The response.
Transport error. See cause.