Class Timestamp.Builder

public static final class Timestamp.Builder extends GeneratedMessageLite.Builder<Timestamp,Timestamp.Builder> implements TimestampOrBuilder


A Timestamp represents a point in time independent of any time zone or local
calendar, encoded as a count of seconds and fractions of seconds at
nanosecond resolution. The count is relative to an epoch at UTC midnight on
January 1, 1970, in the proleptic Gregorian calendar which extends the
Gregorian calendar backwards to year one.
All minutes are 60 seconds long. Leap seconds are "smeared" so that no leap
second table is needed for interpretation, using a 24-hour linear
smear
.
The range is from 0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z. By
restricting to that range, we ensure that we can convert to and from RFC
3339
date strings.
# Examples
Example 1: Compute Timestamp from POSIX time().
Timestamp timestamp;
timestamp.set_seconds(time(NULL));
timestamp.set_nanos(0);
Example 2: Compute Timestamp from POSIX gettimeofday().
struct timeval tv;
gettimeofday(&tv, NULL);
Timestamp timestamp;
timestamp.set_seconds(tv.tv_sec);
timestamp.set_nanos(tv.tv_usec * 1000);
Example 3: Compute Timestamp from Win32 GetSystemTimeAsFileTime().
FILETIME ft;
GetSystemTimeAsFileTime(&ft);
UINT64 ticks = (((UINT64)ft.dwHighDateTime) << 32) | ft.dwLowDateTime;
// A Windows tick is 100 nanoseconds. Windows epoch 1601-01-01T00:00:00Z
// is 11644473600 seconds before Unix epoch 1970-01-01T00:00:00Z.
Timestamp timestamp;
timestamp.set_seconds((INT64) ((ticks / 10000000) - 11644473600LL));
timestamp.set_nanos((INT32) ((ticks % 10000000) * 100));
Example 4: Compute Timestamp from Java System.currentTimeMillis().
long millis = System.currentTimeMillis();
Timestamp timestamp = Timestamp.newBuilder().setSeconds(millis / 1000)
.setNanos((int) ((millis % 1000) * 1000000)).build();
Example 5: Compute Timestamp from Java Instant.now().
Instant now = Instant.now();
Timestamp timestamp =
Timestamp.newBuilder().setSeconds(now.getEpochSecond())
.setNanos(now.getNano()).build();
Example 6: Compute Timestamp from current time in Python.
timestamp = Timestamp()
timestamp.GetCurrentTime()
# JSON Mapping
In JSON format, the Timestamp type is encoded as a string in the
RFC 3339 format. That is, the
format is "{year}-{month}-{day}T{hour}:{min}:{sec}[.{frac_sec}]Z"
where {year} is always expressed using four digits while {month}, {day},
{hour}, {min}, and {sec} are zero-padded to two digits each. The fractional
seconds, which can go up to 9 digits (i.e. up to 1 nanosecond resolution),
are optional. The "Z" suffix indicates the timezone ("UTC"); the timezone
is required. A proto3 JSON serializer should always use UTC (as indicated by
"Z") when printing the Timestamp type and a proto3 JSON parser should be
able to accept both UTC and other timezones (as indicated by an offset).
For example, "2017-01-15T01:30:15.01Z" encodes 15.01 seconds past
01:30 UTC on January 15, 2017.
In JavaScript, one can convert a Date object to this format using the
standard
toISOString()
method. In Python, a standard datetime.datetime object can be converted
to this format using
strftime with
the time format spec '%Y-%m-%dT%H:%M:%S.%fZ'. Likewise, in Java, one can use
the Joda Time's ISODateTimeFormat.dateTime() to obtain a formatter capable of generating timestamps in this format.

Protobuf type google.protobuf.Timestamp

Implements

TimestampOrBuilder

Methods

clearNanos()

public Timestamp.Builder clearNanos()


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
TypeDescription
Timestamp.Builder

This builder for chaining.

clearSeconds()

public Timestamp.Builder clearSeconds()


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
TypeDescription
Timestamp.Builder

This builder for chaining.

getNanos()

public int getNanos()


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
TypeDescription
int

The nanos.

getSeconds()

public long getSeconds()


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
TypeDescription
long

The seconds.

setNanos(int value)

public Timestamp.Builder setNanos(int value)


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;

Parameter
NameDescription
valueint

The nanos to set.

Returns
TypeDescription
Timestamp.Builder

This builder for chaining.

setSeconds(long value)

public Timestamp.Builder setSeconds(long value)


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;

Parameter
NameDescription
valuelong

The seconds to set.

Returns
TypeDescription
Timestamp.Builder

This builder for chaining.