GpsTimeConverter (HM Gears 0.10.7 API)

java.lang.Object
- org.hortonmachine.gears.io.las.utils.GpsTimeConverter

```
public class GpsTimeConverter
extends Object
```
Gps Time converter
Adapted from the javascript version of: https://losc.ligo.org/gps/

Following may be helpful for conversion when new leap seconds are announced.
```
 gnu 'date':
 date --date='2012-06-30 23:59:59' +%s
 
```
source: https://losc.ligo.org/s/js/gpstimeutil.js

GPS time was born at the 1/5/1980 to 1/6/1980 midnight. January 6, 1980 is a Sunday. GPS Time counts in weeks and seconds of a week from this instant. The weeks begin at the Saturday/Sunday transition. The days of the week are numbered, with Sunday being 0, Saturday is day 6
Author:

Andrea Antonello (www.hydrologis.com)

Field Summary

Fields
Modifier and Type Field Description

static String ISO8601_pattern

static org.joda.time.format.DateTimeFormatter ISO8601Formatter

Constructor Summary

Constructors
Constructor Description

GpsTimeConverter()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static double`	`dateTime2gps(double dateTimeMillis)`	Convert `DateTime` to GPS Time.
`static org.joda.time.DateTime`	`gpsWeekTime2DateTime(double gpsWeekTime)`	Convert GPS Week Time to `DateTime`.
`static String`	`gpsWeekTime2ISO8601(double gpsWeekTime)`	Convert GPS Time to ISO8601 time string.
`static EGpsWeekDays`	`gpsWeekTime2WeekDay(double gpsWeekTime)`	Convert GPS Week Time to the day of the week.

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

- Field Detail
  - ISO8601_pattern
```
public static String ISO8601_pattern
```
  - ISO8601Formatter
```
public static org.joda.time.format.DateTimeFormatter ISO8601Formatter
```
- Constructor Detail
  - GpsTimeConverter
```
public GpsTimeConverter()
```
- Method Detail
  - dateTime2gps
```
public static double dateTime2gps(double dateTimeMillis)
```
    Convert DateTime to GPS Time.
    
    Parameters:
    
    dateTimeMillis - the datetime to convert (millis).
    
    Returns:
    
    the gps time.
  - gpsWeekTime2DateTime
```
public static org.joda.time.DateTime gpsWeekTime2DateTime(double gpsWeekTime)
```
    Convert GPS Week Time to DateTime.
    
    Parameters:
    
    gpsWeekTime - the gps time.
    
    Returns:
    
    the DateTime of the gps time.
  - gpsWeekTime2WeekDay
```
public static EGpsWeekDays gpsWeekTime2WeekDay(double gpsWeekTime)
```
    Convert GPS Week Time to the day of the week.
    
    Parameters:
    
    gpsWeekTime - the gps time.
    
    Returns:
    
    the day of the week.
  - gpsWeekTime2ISO8601
```
public static String gpsWeekTime2ISO8601(double gpsWeekTime)
```
    Convert GPS Time to ISO8601 time string.
    
    Parameters:
    
    gpsWeekTime - the gps time.
    
    Returns:
    
    the ISO8601 string of the gps time.