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The DOMHighResTimeStamp type is a double and is used to store a time value. The value could be a discrete point in time or the difference in time between two discrete points in time. The unit is milliseconds and should be accurate to 5 µs (microseconds). However, if the browser is unable to provide a time value accurate to 5 microseconds (due, for example, to hardware or software constraints), the browser can represent the value as a time in milliseconds accurate to a millisecond.
Implementations that cannot get the required precision (for example, if the underlying system doesn't support it) are allowed to only be accurate to one millisecond.
Properties
This type has no properties.
Methods
This type has no methods.
Specifications
| Specification | Status | Comment |
|---|---|---|
| High Resolution Time Level 2 The definition of 'DOMHighResTimeStamp' in that specification. |
Editor's Draft | Stricter definitions of interfaces and types. |
| High Resolution Time The definition of 'DOMHighResTimeStamp' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | 6 | 7.0 (7.0) | 9 | 15.0 | 8 |
| Feature | Android | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | (Yes) | 15.0 (15.0) | 9 | 15.0 | 9 |