Convert Google Play Reviews lastModified seconds to DateTime

Question

I need to process Google Play customer reviews as described in https://developers.google.com/android-publisher/api-ref/reviews and https://developers.google.com/android-publisher/reply-to-reviews.
The documentation shows

"lastModified": {
          "seconds": long,
          "nanos": integer
        },

Example

"lastModified": {
          "seconds": "1452114723",
          "nanos": 913000000
        },

• comments[].developerComment.lastModified
  • nested object
  • The last time * at which this comment was updated.
• comments[].developerComment.lastModified.nanos
  • integer
• comments[].developerComment.lastModified.seconds
  • long

Can anyone give me a hint how to convert seconds/nanos to normal date/time?

Answer 1

I was able to figure out that seconds in Google documentation means Unix epoch time (Epoch beginning 1/1/1970).

To convert to time you can use FromUnixTime extension from
How do you convert epoch time in C#?.

I didn't expect that Google has such bad documentation and do not care about feedback( Where to submit Google play developer api feedback?)

Answer 2

For java/joda time the time is in milli seconds hence will require to be multiplied by 1000.

DateTime seconds = new DateTime(1452114723 * 1000L);