Timestamps (Protocol Buffers [Util] 3.3.1 API)

java.lang.Object
- com.google.protobuf.util.Timestamps

```
public final class Timestamps
extends Object
```
Utilities to help create/manipulate protobuf/timestamp.proto. All operations throw an IllegalArgumentException if the input(s) are not valid.

Field Summary

Fields
Modifier and Type	Field and Description
`static com.google.protobuf.Timestamp`	`MAX_VALUE` A constant holding the maximum valid `Timestamp`, `9999-12-31T23:59:59.999999999Z`.
`static com.google.protobuf.Timestamp`	`MIN_VALUE` A constant holding the minimum valid `Timestamp`, `0001-01-01T00:00:00Z`.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static com.google.protobuf.Timestamp`	`add(com.google.protobuf.Timestamp start, com.google.protobuf.Duration length)` Add a duration to a timestamp.
`static com.google.protobuf.Duration`	`between(com.google.protobuf.Timestamp from, com.google.protobuf.Timestamp to)` Calculate the difference between two timestamps.
`static com.google.protobuf.Timestamp`	`checkValid(com.google.protobuf.Timestamp timestamp)` Throws an `IllegalArgumentException` if the given `Timestamp` is not valid.
`static Comparator<com.google.protobuf.Timestamp>`	`comparator()` Returns a `Comparator` for `Timestamp`s which sorts in increasing chronological order.
`static com.google.protobuf.Timestamp`	`fromMicros(long microseconds)` Create a Timestamp from the number of microseconds elapsed from the epoch.
`static com.google.protobuf.Timestamp`	`fromMillis(long milliseconds)` Create a Timestamp from the number of milliseconds elapsed from the epoch.
`static com.google.protobuf.Timestamp`	`fromNanos(long nanoseconds)` Create a Timestamp from the number of nanoseconds elapsed from the epoch.
`static com.google.protobuf.Timestamp`	`fromSeconds(long seconds)` Create a Timestamp from the number of seconds elapsed from the epoch.
`static boolean`	`isValid(long seconds, int nanos)` Returns true if the given number of seconds and nanos is a valid `Timestamp`.
`static boolean`	`isValid(com.google.protobuf.Timestamp timestamp)` Returns true if the given `Timestamp` is valid.
`static com.google.protobuf.Timestamp`	`parse(String value)` Parse from RFC 3339 date string to Timestamp.
`static com.google.protobuf.Timestamp`	`subtract(com.google.protobuf.Timestamp start, com.google.protobuf.Duration length)` Subtract a duration from a timestamp.
`static long`	`toMicros(com.google.protobuf.Timestamp timestamp)` Convert a Timestamp to the number of microseconds elapsed from the epoch.
`static long`	`toMillis(com.google.protobuf.Timestamp timestamp)` Convert a Timestamp to the number of milliseconds elapsed from the epoch.
`static long`	`toNanos(com.google.protobuf.Timestamp timestamp)` Convert a Timestamp to the number of nanoseconds elapsed from the epoch.
`static long`	`toSeconds(com.google.protobuf.Timestamp timestamp)` Convert a Timestamp to the number of seconds elapsed from the epoch.
`static String`	`toString(com.google.protobuf.Timestamp timestamp)` Convert Timestamp to RFC 3339 date string format.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - MIN_VALUE
```
public static final com.google.protobuf.Timestamp MIN_VALUE
```
    A constant holding the minimum valid Timestamp, 0001-01-01T00:00:00Z.
  - MAX_VALUE
```
public static final com.google.protobuf.Timestamp MAX_VALUE
```
    A constant holding the maximum valid Timestamp, 9999-12-31T23:59:59.999999999Z.
- Method Detail
  - comparator
```
public static Comparator<com.google.protobuf.Timestamp> comparator()
```
    Returns a Comparator for Timestamps which sorts in increasing chronological order. Nulls and invalid Timestamps are not allowed (see isValid(com.google.protobuf.Timestamp)).
  - isValid
```
public static boolean isValid(com.google.protobuf.Timestamp timestamp)
```
    Returns true if the given Timestamp is valid. The seconds value must be in the range [-62,135,596,800, +253,402,300,799] (i.e., between 0001-01-01T00:00:00Z and 9999-12-31T23:59:59Z). The nanos value must be in the range [0, +999,999,999].
    Note: Negative second values with fractional seconds must still have non-negative nanos values that count forward in time.
  - isValid
```
public static boolean isValid(long seconds,
                              int nanos)
```
    Returns true if the given number of seconds and nanos is a valid Timestamp. The seconds value must be in the range [-62,135,596,800, +253,402,300,799] (i.e., between 0001-01-01T00:00:00Z and 9999-12-31T23:59:59Z). The nanos value must be in the range [0, +999,999,999].
    Note: Negative second values with fractional seconds must still have non-negative nanos values that count forward in time.
  - checkValid
```
public static com.google.protobuf.Timestamp checkValid(com.google.protobuf.Timestamp timestamp)
```
    Throws an IllegalArgumentException if the given Timestamp is not valid.
  - toString
```
public static String toString(com.google.protobuf.Timestamp timestamp)
```
    Convert Timestamp to RFC 3339 date string format. The output will always be Z-normalized and uses 3, 6 or 9 fractional digits as required to represent the exact value. Note that Timestamp can only represent time from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z. See https://www.ietf.org/rfc/rfc3339.txt
    Example of generated format: "1972-01-01T10:00:20.021Z"
    
    Returns:
    
    The string representation of the given timestamp.
    
    Throws:
    
    IllegalArgumentException - if the given timestamp is not in the valid range.
  - parse
```
public static com.google.protobuf.Timestamp parse(String value)
                                           throws ParseException
```
    Parse from RFC 3339 date string to Timestamp. This method accepts all outputs of toString(Timestamp) and it also accepts any fractional digits (or none) and any offset as long as they fit into nano-seconds precision.
    Example of accepted format: "1972-01-01T10:00:20.021-05:00"
    
    Returns:
    
    A Timestamp parsed from the string.
    
    Throws:
    
    ParseException - if parsing fails.
  - fromSeconds
```
public static com.google.protobuf.Timestamp fromSeconds(long seconds)
```
    Create a Timestamp from the number of seconds elapsed from the epoch.
  - toSeconds
```
public static long toSeconds(com.google.protobuf.Timestamp timestamp)
```
    Convert a Timestamp to the number of seconds elapsed from the epoch.
    The result will be rounded down to the nearest second. E.g., if the timestamp represents "1969-12-31T23:59:59.999999999Z", it will be rounded to -1 second.
  - fromMillis
```
public static com.google.protobuf.Timestamp fromMillis(long milliseconds)
```
    Create a Timestamp from the number of milliseconds elapsed from the epoch.
  - toMillis
```
public static long toMillis(com.google.protobuf.Timestamp timestamp)
```
    Convert a Timestamp to the number of milliseconds elapsed from the epoch.
    The result will be rounded down to the nearest millisecond. E.g., if the timestamp represents "1969-12-31T23:59:59.999999999Z", it will be rounded to -1 millisecond.
  - fromMicros
```
public static com.google.protobuf.Timestamp fromMicros(long microseconds)
```
    Create a Timestamp from the number of microseconds elapsed from the epoch.
  - toMicros
```
public static long toMicros(com.google.protobuf.Timestamp timestamp)
```
    Convert a Timestamp to the number of microseconds elapsed from the epoch.
    The result will be rounded down to the nearest microsecond. E.g., if the timestamp represents "1969-12-31T23:59:59.999999999Z", it will be rounded to -1 microsecond.
  - fromNanos
```
public static com.google.protobuf.Timestamp fromNanos(long nanoseconds)
```
    Create a Timestamp from the number of nanoseconds elapsed from the epoch.
  - toNanos
```
public static long toNanos(com.google.protobuf.Timestamp timestamp)
```
    Convert a Timestamp to the number of nanoseconds elapsed from the epoch.
  - between
```
public static com.google.protobuf.Duration between(com.google.protobuf.Timestamp from,
                                                   com.google.protobuf.Timestamp to)
```
    Calculate the difference between two timestamps.
  - add
```
public static com.google.protobuf.Timestamp add(com.google.protobuf.Timestamp start,
                                                com.google.protobuf.Duration length)
```
    Add a duration to a timestamp.
  - subtract
```
public static com.google.protobuf.Timestamp subtract(com.google.protobuf.Timestamp start,
                                                     com.google.protobuf.Duration length)
```
    Subtract a duration from a timestamp.

Class Timestamps

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

MIN_VALUE

MAX_VALUE

Method Detail

comparator

isValid

isValid

checkValid

toString

parse

fromSeconds

toSeconds

fromMillis

toMillis

fromMicros

toMicros

fromNanos

toNanos

between

add

subtract