https://developers.google.com/protocol-buffers/protobuf-java/: Core Protocol Buffers library. Protocol Buffers are a way of encoding structured data in an efficient yet extensible format. 
// Generated by the protocol buffer compiler.  DO NOT EDIT!
// source: google/protobuf/timestamp.proto

package com.google.protobuf;

public interface TimestampOrBuilder extends
    // @@protoc_insertion_point(interface_extends:google.protobuf.Timestamp)
    com.google.protobuf.MessageOrBuilder {

  
Represents seconds of UTC time since Unix epoch
1970-01-01T00:00:00Z. Must be from 0001-01-01T00:00:00Z to
9999-12-31T23:59:59Z inclusive.


int64 seconds = 1;

Returns:The seconds.
/**
   * <pre>
   * Represents seconds of UTC time since Unix epoch
   * 1970-01-01T00:00:00Z. Must be from 0001-01-01T00:00:00Z to
   * 9999-12-31T23:59:59Z inclusive.
   * </pre>
   *
   * <code>int64 seconds = 1;</code>
   * @return The seconds.
   */
  long getSeconds();

  
Non-negative fractions of a second at nanosecond resolution. Negative
second values with fractions must still have non-negative nanos values
that count forward in time. Must be from 0 to 999,999,999
inclusive.


int32 nanos = 2;

Returns:The nanos.
/**
   * <pre>
   * Non-negative fractions of a second at nanosecond resolution. Negative
   * second values with fractions must still have non-negative nanos values
   * that count forward in time. Must be from 0 to 999,999,999
   * inclusive.
   * </pre>
   *
   * <code>int32 nanos = 2;</code>
   * @return The nanos.
   */
  int getNanos();
}