Clock (micrometer-core 1.2.0 API)

All Known Implementing Classes:

MockClock
```
public interface Clock
```
Used to measure absolute and relative time.

See Also:

for a clock that can be manually advanced for use in tests.

Field Summary

Fields
Modifier and Type Field Description

static Clock SYSTEM

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`long`	`monotonicTime()`	Current time from a monotonic clock source.
`long`	`wallTime()`	Current wall time in milliseconds since the epoch.

- Field Detail
  - SYSTEM
```
static final Clock SYSTEM
```
- Method Detail
  - wallTime
```
long wallTime()
```
    Current wall time in milliseconds since the epoch. Typically equivalent to System.currentTimeMillis. Should not be used to determine durations. Used for timestamping metrics being pushed to a monitoring system or for determination of step boundaries (e.g. StepLong.
    
    Returns:
    
    Wall time in milliseconds
  - monotonicTime
```
long monotonicTime()
```
    Current time from a monotonic clock source. The value is only meaningful when compared with another snapshot to determine the elapsed time for an operation. The difference between two samples will have a unit of nanoseconds. The returned value is typically equivalent to System.nanoTime.
    
    Returns:
    
    Monotonic time in nanoseconds