How can I extract date and time from the ASCI file and use it for further processing ??

Dear all,

I have many .asc files from which I want to extract date and time from each file. And then, I want to calculate the elapsed time between two consecutive files. For example, I am showing you the content of one of those .asc files

ALV-5000/E-WIN Data

ALV-5000/EPP-WIN Data

Date : "21/06/2012"

Time : "17:17:22"

Samplename : ""

SampMemo(0) : ""

SampMemo(1) : ""

SampMemo(2) : ""

SampMemo(3) : ""

SampMemo(4) : ""

Temperature [K] : 298.30304

Viscosity [cp] : 0.89000

Refractive Index: 1.33200

Wavelength [nm] : 632.80000

Angle [°] : 90.00000

Duration [s] : 60

Runs : 2

Mode : "SINGLE AUTO CH0"

MeanCR0 [kHz] : 190.64098

MeanCR1 [kHz] : 0.00000

"Correlation (Multi, Averaged)"

"Lag [ms]" "Average" " 1, 182.594" " 2, 190.641" 1.25000E-004 3.07061E-001 3.02281E-001 3.11842E-001 2.50000E-004 3.46454E-001 3.41611E-001 3.51296E-001 3.75000E-004 3.41514E-001 3.36902E-001 3.46126E-001 5.00000E-004 3.38978E-001 3.33056E-001 3.44899E-001 6.25000E-004 3.36273E-001 3.29772E-001 3.42774E-001 7.50000E-004 3.34571E-001 3.31137E-001 3.38005E-001 8.75000E-004 3.34329E-001 3.30591E-001 3.38068E-001 1.00000E-003 3.32946E-001 3.29114E-001 3.36779E-001 1.12500E-003 3.30590E-001 3.26464E-001 3.34716E-001 1.25000E-003 3.30396E-001 3.26308E-001 3.34484E-001 1.37500E-003 3.28935E-001 3.27761E-001 3.30109E-001 1.50000E-003 3.25896E-001 3.20619E-001 3.31173E-001 1.62500E-003 3.28449E-001 3.23004E-001 3.33895E-001 1.75000E-003 3.26280E-001 3.20105E-001 3.32455E-001 1.87500E-003 3.29165E-001 3.25308E-001 3.33022E-001 2.00000E-003 3.25910E-001 3.23152E-001 3.28669E-001 2.25000E-003 3.22503E-001 3.18315E-001 3.26691E-001 2.50000E-003 3.23350E-001 3.19390E-001 3.27310E-001 2.75000E-003 3.22558E-001 3.18451E-001 3.26665E-001 3.00000E-003 3.20583E-001 3.15984E-001 3.25181E-001 3.25000E-003 3.19745E-001 3.14208E-001 3.25282E-001 3.50000E-003 3.18507E-001 3.15478E-001 3.21535E-001

As you can see in the third and fourth line from the top, contains date and time respectively. I want to extract this date and time for each file I have and then I want to calculate the elapsed time between two consecutive files. I have series of file which has been generated with increasing time and in total I have 100 files. Therefore, i want to calculate the elapsed time between two files. Thats is how much is the time gap between two files.

Regards and thanks Manish