DateTimeConstants

java.lang.Object
- org.joda.time.DateTimeConstants

```
public class DateTimeConstants
extends java.lang.Object
```
DateTimeConstants is a non-instantiable class of constants used in the date time system. These are the ISO8601 constants, but should be used by all chronologies.
DateTimeConstants is thread-safe and immutable.

Since:

1.0

Author:

Stephen Colebourne, Brian S O'Neill

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`AD`	Constant (1) representing AD, years after zero (from Calendar).
`static int`	`AM`	Constant (0) representing AM, the morning (from Calendar)
`static int`	`APRIL`	Constant (4) representing April, the fourth month (ISO)
`static int`	`AUGUST`	Constant (8) representing August, the eighth month (ISO)
`static int`	`BC`	Constant (0) representing BC, years before zero (from Calendar)
`static int`	`BCE`	Alternative constant (0) representing BCE, Before Common Era (secular)
`static int`	`CE`	Alternative constant (1) representing CE, Common Era (secular).
`static int`	`DAYS_PER_WEEK`	Days in one week (7) (ISO)
`static int`	`DECEMBER`	Constant (12) representing December, the twelfth month (ISO)
`static int`	`FEBRUARY`	Constant (2) representing February, the second month (ISO)
`static int`	`FRIDAY`	Constant (5) representing Friday, the fifth day of the week (ISO)
`static int`	`HOURS_PER_DAY`	Hours in a typical day (24) (ISO).
`static int`	`HOURS_PER_WEEK`	Hours in a typical week.
`static int`	`JANUARY`	Constant (1) representing January, the first month (ISO)
`static int`	`JULY`	Constant (7) representing July, the seventh month (ISO)
`static int`	`JUNE`	Constant (6) representing June, the sixth month (ISO)
`static int`	`MARCH`	Constant (3) representing March, the third month (ISO)
`static int`	`MAY`	Constant (5) representing May, the fifth month (ISO)
`static int`	`MILLIS_PER_DAY`	Milliseconds in a typical day (ISO).
`static int`	`MILLIS_PER_HOUR`	Milliseconds in one hour (ISO)
`static int`	`MILLIS_PER_MINUTE`	Milliseconds in one minute (ISO)
`static int`	`MILLIS_PER_SECOND`	Milliseconds in one second (1000) (ISO)
`static int`	`MILLIS_PER_WEEK`	Milliseconds in a typical week (ISO).
`static int`	`MINUTES_PER_DAY`	Minutes in a typical day (ISO).
`static int`	`MINUTES_PER_HOUR`	Minutes in one hour (ISO)
`static int`	`MINUTES_PER_WEEK`	Minutes in a typical week (ISO).
`static int`	`MONDAY`	Constant (1) representing Monday, the first day of the week (ISO)
`static int`	`NOVEMBER`	Constant (11) representing November, the eleventh month (ISO)
`static int`	`OCTOBER`	Constant (10) representing October, the tenth month (ISO)
`static int`	`PM`	Constant (1) representing PM, the afternoon (from Calendar)
`static int`	`SATURDAY`	Constant (6) representing Saturday, the sixth day of the week (ISO)
`static int`	`SECONDS_PER_DAY`	Seconds in a typical day (ISO).
`static int`	`SECONDS_PER_HOUR`	Seconds in one hour (ISO)
`static int`	`SECONDS_PER_MINUTE`	Seconds in one minute (60) (ISO)
`static int`	`SECONDS_PER_WEEK`	Seconds in a typical week (ISO).
`static int`	`SEPTEMBER`	Constant (9) representing September, the nineth month (ISO)
`static int`	`SUNDAY`	Constant (7) representing Sunday, the seventh day of the week (ISO)
`static int`	`THURSDAY`	Constant (4) representing Thursday, the fourth day of the week (ISO)
`static int`	`TUESDAY`	Constant (2) representing Tuesday, the second day of the week (ISO)
`static int`	`WEDNESDAY`	Constant (3) representing Wednesday, the third day of the week (ISO)

Constructor Summary

Constructors
Modifier Constructor Description

protected DateTimeConstants()
Restrictive constructor

Constructors
Modifier	Constructor	Description
`protected`	`DateTimeConstants()`	Restrictive constructor

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

- Field Detail
  - JANUARY
```
public static final int JANUARY
```
    Constant (1) representing January, the first month (ISO)
    
    See Also:
    
    Constant Field Values
  - FEBRUARY
```
public static final int FEBRUARY
```
    Constant (2) representing February, the second month (ISO)
    
    See Also:
    
    Constant Field Values
  - MARCH
```
public static final int MARCH
```
    Constant (3) representing March, the third month (ISO)
    
    See Also:
    
    Constant Field Values
  - APRIL
```
public static final int APRIL
```
    Constant (4) representing April, the fourth month (ISO)
    
    See Also:
    
    Constant Field Values
  - MAY
```
public static final int MAY
```
    Constant (5) representing May, the fifth month (ISO)
    
    See Also:
    
    Constant Field Values
  - JUNE
```
public static final int JUNE
```
    Constant (6) representing June, the sixth month (ISO)
    
    See Also:
    
    Constant Field Values
  - JULY
```
public static final int JULY
```
    Constant (7) representing July, the seventh month (ISO)
    
    See Also:
    
    Constant Field Values
  - AUGUST
```
public static final int AUGUST
```
    Constant (8) representing August, the eighth month (ISO)
    
    See Also:
    
    Constant Field Values
  - SEPTEMBER
```
public static final int SEPTEMBER
```
    Constant (9) representing September, the nineth month (ISO)
    
    See Also:
    
    Constant Field Values
  - OCTOBER
```
public static final int OCTOBER
```
    Constant (10) representing October, the tenth month (ISO)
    
    See Also:
    
    Constant Field Values
  - NOVEMBER
```
public static final int NOVEMBER
```
    Constant (11) representing November, the eleventh month (ISO)
    
    See Also:
    
    Constant Field Values
  - DECEMBER
```
public static final int DECEMBER
```
    Constant (12) representing December, the twelfth month (ISO)
    
    See Also:
    
    Constant Field Values
  - MONDAY
```
public static final int MONDAY
```
    Constant (1) representing Monday, the first day of the week (ISO)
    
    See Also:
    
    Constant Field Values
  - TUESDAY
```
public static final int TUESDAY
```
    Constant (2) representing Tuesday, the second day of the week (ISO)
    
    See Also:
    
    Constant Field Values
  - WEDNESDAY
```
public static final int WEDNESDAY
```
    Constant (3) representing Wednesday, the third day of the week (ISO)
    
    See Also:
    
    Constant Field Values
  - THURSDAY
```
public static final int THURSDAY
```
    Constant (4) representing Thursday, the fourth day of the week (ISO)
    
    See Also:
    
    Constant Field Values
  - FRIDAY
```
public static final int FRIDAY
```
    Constant (5) representing Friday, the fifth day of the week (ISO)
    
    See Also:
    
    Constant Field Values
  - SATURDAY
```
public static final int SATURDAY
```
    Constant (6) representing Saturday, the sixth day of the week (ISO)
    
    See Also:
    
    Constant Field Values
  - SUNDAY
```
public static final int SUNDAY
```
    Constant (7) representing Sunday, the seventh day of the week (ISO)
    
    See Also:
    
    Constant Field Values
  - AM
```
public static final int AM
```
    Constant (0) representing AM, the morning (from Calendar)
    
    See Also:
    
    Constant Field Values
  - PM
```
public static final int PM
```
    Constant (1) representing PM, the afternoon (from Calendar)
    
    See Also:
    
    Constant Field Values
  - BC
```
public static final int BC
```
    Constant (0) representing BC, years before zero (from Calendar)
    
    See Also:
    
    Constant Field Values
  - BCE
```
public static final int BCE
```
    Alternative constant (0) representing BCE, Before Common Era (secular)
    
    See Also:
    
    Constant Field Values
  - AD
```
public static final int AD
```
    Constant (1) representing AD, years after zero (from Calendar).
    All new chronologies with different Era values should try to assign eras as follows. The era that was in force at 1970-01-01 (ISO) is assigned the value 1. Earlier eras are assigned sequentially smaller numbers. Later eras are assigned sequentially greater numbers.
    
    See Also:
    
    Constant Field Values
  - CE
```
public static final int CE
```
    Alternative constant (1) representing CE, Common Era (secular).
    All new chronologies with different Era values should try to assign eras as follows. The era that was in force at 1970-01-01 (ISO) is assigned the value 1. Earlier eras are assigned sequentially smaller numbers. Later eras are assigned sequentially greater numbers.
    
    See Also:
    
    Constant Field Values
  - MILLIS_PER_SECOND
```
public static final int MILLIS_PER_SECOND
```
    Milliseconds in one second (1000) (ISO)
    
    See Also:
    
    Constant Field Values
  - SECONDS_PER_MINUTE
```
public static final int SECONDS_PER_MINUTE
```
    Seconds in one minute (60) (ISO)
    
    See Also:
    
    Constant Field Values
  - MILLIS_PER_MINUTE
```
public static final int MILLIS_PER_MINUTE
```
    Milliseconds in one minute (ISO)
    
    See Also:
    
    Constant Field Values
  - MINUTES_PER_HOUR
```
public static final int MINUTES_PER_HOUR
```
    Minutes in one hour (ISO)
    
    See Also:
    
    Constant Field Values
  - SECONDS_PER_HOUR
```
public static final int SECONDS_PER_HOUR
```
    Seconds in one hour (ISO)
    
    See Also:
    
    Constant Field Values
  - MILLIS_PER_HOUR
```
public static final int MILLIS_PER_HOUR
```
    Milliseconds in one hour (ISO)
    
    See Also:
    
    Constant Field Values
  - HOURS_PER_DAY
```
public static final int HOURS_PER_DAY
```
    Hours in a typical day (24) (ISO). Due to time zone offset changes, the number of hours per day can vary.
    
    See Also:
    
    Constant Field Values
  - MINUTES_PER_DAY
```
public static final int MINUTES_PER_DAY
```
    Minutes in a typical day (ISO). Due to time zone offset changes, the number of minutes per day can vary.
    
    See Also:
    
    Constant Field Values
  - SECONDS_PER_DAY
```
public static final int SECONDS_PER_DAY
```
    Seconds in a typical day (ISO). Due to time zone offset changes, the number of seconds per day can vary.
    
    See Also:
    
    Constant Field Values
  - MILLIS_PER_DAY
```
public static final int MILLIS_PER_DAY
```
    Milliseconds in a typical day (ISO). Due to time zone offset changes, the number of milliseconds per day can vary.
    
    See Also:
    
    Constant Field Values
  - DAYS_PER_WEEK
```
public static final int DAYS_PER_WEEK
```
    Days in one week (7) (ISO)
    
    See Also:
    
    Constant Field Values
  - HOURS_PER_WEEK
```
public static final int HOURS_PER_WEEK
```
    Hours in a typical week. Due to time zone offset changes, the number of hours per week can vary.
    
    See Also:
    
    Constant Field Values
  - MINUTES_PER_WEEK
```
public static final int MINUTES_PER_WEEK
```
    Minutes in a typical week (ISO). Due to time zone offset changes, the number of minutes per week can vary.
    
    See Also:
    
    Constant Field Values
  - SECONDS_PER_WEEK
```
public static final int SECONDS_PER_WEEK
```
    Seconds in a typical week (ISO). Due to time zone offset changes, the number of seconds per week can vary.
    
    See Also:
    
    Constant Field Values
  - MILLIS_PER_WEEK
```
public static final int MILLIS_PER_WEEK
```
    Milliseconds in a typical week (ISO). Due to time zone offset changes, the number of milliseconds per week can vary.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - DateTimeConstants
```
protected DateTimeConstants()
```
    Restrictive constructor

Class DateTimeConstants

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

JANUARY

FEBRUARY

MARCH

APRIL

MAY

JUNE

JULY

AUGUST

SEPTEMBER

OCTOBER

NOVEMBER

DECEMBER

MONDAY

TUESDAY

WEDNESDAY

THURSDAY

FRIDAY

SATURDAY

SUNDAY

AM

PM

BC

BCE

AD

CE

MILLIS_PER_SECOND

SECONDS_PER_MINUTE

MILLIS_PER_MINUTE

MINUTES_PER_HOUR

SECONDS_PER_HOUR

MILLIS_PER_HOUR

HOURS_PER_DAY

MINUTES_PER_DAY

SECONDS_PER_DAY

MILLIS_PER_DAY

DAYS_PER_WEEK

HOURS_PER_WEEK

MINUTES_PER_WEEK

SECONDS_PER_WEEK

MILLIS_PER_WEEK

Constructor Detail

DateTimeConstants