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Time¶
Inherits: Object
A singleton for working with time data.
描述¶
The Time singleton allows converting time between various formats and also getting time information from the system.
This class conforms with as many of the ISO 8601 standards as possible. All dates follow the Proleptic Gregorian calendar. As such, the day before 1582-10-15 is 1582-10-14, not 1582-10-04. The year before 1 AD (aka 1 BC) is number 0, with the year before that (2 BC) being -1, etc.
Conversion methods assume "the same timezone", and do not handle timezone conversions or DST automatically. Leap seconds are also not handled, they must be done manually if desired. Suffixes such as "Z" are not handled, you need to strip them away manually.
When getting time information from the system, the time can either be in the local timezone or UTC depending on the utc parameter. However, the get_unix_time_from_system method always returns the time in UTC.
Important: The _from_system methods use the system clock that the user can manually set. Never use this method for precise time calculation since its results are subject to automatic adjustments by the user or the operating system. Always use get_ticks_usec or get_ticks_msec for precise time calculation instead, since they are guaranteed to be monotonic (i.e. never decrease).
Methods¶
Enumerations¶
enum Month:
Month MONTH_JANUARY = 1
The month of January, represented numerically as 01.
Month MONTH_FEBRUARY = 2
The month of February, represented numerically as 02.
Month MONTH_MARCH = 3
The month of March, represented numerically as 03.
Month MONTH_APRIL = 4
The month of April, represented numerically as 04.
Month MONTH_MAY = 5
The month of May, represented numerically as 05.
Month MONTH_JUNE = 6
The month of June, represented numerically as 06.
Month MONTH_JULY = 7
The month of July, represented numerically as 07.
Month MONTH_AUGUST = 8
The month of August, represented numerically as 08.
Month MONTH_SEPTEMBER = 9
The month of September, represented numerically as 09.
Month MONTH_OCTOBER = 10
The month of October, represented numerically as 10.
Month MONTH_NOVEMBER = 11
The month of November, represented numerically as 11.
Month MONTH_DECEMBER = 12
The month of December, represented numerically as 12.
enum Weekday:
Weekday WEEKDAY_SUNDAY = 0
The day of the week Sunday, represented numerically as 0.
Weekday WEEKDAY_MONDAY = 1
The day of the week Monday, represented numerically as 1.
Weekday WEEKDAY_TUESDAY = 2
The day of the week Tuesday, represented numerically as 2.
Weekday WEEKDAY_WEDNESDAY = 3
The day of the week Wednesday, represented numerically as 3.
Weekday WEEKDAY_THURSDAY = 4
The day of the week Thursday, represented numerically as 4.
Weekday WEEKDAY_FRIDAY = 5
The day of the week Friday, represented numerically as 5.
Weekday WEEKDAY_SATURDAY = 6
The day of the week Saturday, represented numerically as 6.
Method Descriptions¶
Dictionary get_date_dict_from_system ( bool utc=false ) const
Returns the current date as a dictionary of keys: year, month, day, and weekday.
The returned values are in the system's local time when utc is false, otherwise they are in UTC.
Dictionary get_date_dict_from_unix_time ( int unix_time_val ) const
Converts the given Unix timestamp to a dictionary of keys: year, month, day, and weekday.
String get_date_string_from_system ( bool utc=false ) const
Returns the current date as an ISO 8601 date string (YYYY-MM-DD).
The returned values are in the system's local time when utc is false, otherwise they are in UTC.
String get_date_string_from_unix_time ( int unix_time_val ) const
Converts the given Unix timestamp to an ISO 8601 date string (YYYY-MM-DD).
Dictionary get_datetime_dict_from_datetime_string ( String datetime, bool weekday ) const
Converts the given ISO 8601 date and time string (YYYY-MM-DDTHH:MM:SS) to a dictionary of keys: year, month, day, weekday, hour, minute, and second.
If weekday is false, then the weekday entry is excluded (the calculation is relatively expensive).
Note: Any decimal fraction in the time string will be ignored silently.
Dictionary get_datetime_dict_from_system ( bool utc=false ) const
Returns the current date as a dictionary of keys: year, month, day, weekday, hour, minute, second, and dst (Daylight Savings Time).
Dictionary get_datetime_dict_from_unix_time ( int unix_time_val ) const
Converts the given Unix timestamp to a dictionary of keys: year, month, day, weekday, hour, minute, and second.
The returned Dictionary's values will be the same as the get_datetime_dict_from_system if the Unix timestamp is the current time, with the exception of Daylight Savings Time as it cannot be determined from the epoch.
String get_datetime_string_from_datetime_dict ( Dictionary datetime, bool use_space ) const
Converts the given dictionary of keys to an ISO 8601 date and time string (YYYY-MM-DDTHH:MM:SS).
The given dictionary can be populated with the following keys: year, month, day, hour, minute, and second. Any other entries (including dst) are ignored.
If the dictionary is empty, 0 is returned. If some keys are omitted, they default to the equivalent values for the Unix epoch timestamp 0 (1970-01-01 at 00:00:00).
If use_space is true, the date and time bits are separated by an empty space character instead of the letter T.
String get_datetime_string_from_system ( bool utc=false, bool use_space=false ) const
Returns the current date and time as an ISO 8601 date and time string (YYYY-MM-DDTHH:MM:SS).
The returned values are in the system's local time when utc is false, otherwise they are in UTC.
If use_space is true, the date and time bits are separated by an empty space character instead of the letter T.
String get_datetime_string_from_unix_time ( int unix_time_val, bool use_space=false ) const
Converts the given Unix timestamp to an ISO 8601 date and time string (YYYY-MM-DDTHH:MM:SS).
If use_space is true, the date and time bits are separated by an empty space character instead of the letter T.
String get_offset_string_from_offset_minutes ( int offset_minutes ) const
Converts the given timezone offset in minutes to a timezone offset string. For example, -480 returns "-08:00", 345 returns "+05:45", and 0 returns "+00:00".
int get_ticks_msec ( ) const
Returns the amount of time passed in milliseconds since the engine started.
Will always be positive or 0 and uses a 64-bit value (it will wrap after roughly 500 million years).
int get_ticks_usec ( ) const
Returns the amount of time passed in microseconds since the engine started.
Will always be positive or 0 and uses a 64-bit value (it will wrap after roughly half a million years).
Dictionary get_time_dict_from_system ( bool utc=false ) const
Returns the current time as a dictionary of keys: hour, minute, and second.
The returned values are in the system's local time when utc is false, otherwise they are in UTC.
Dictionary get_time_dict_from_unix_time ( int unix_time_val ) const
Converts the given time to a dictionary of keys: hour, minute, and second.
String get_time_string_from_system ( bool utc=false ) const
Returns the current time as an ISO 8601 time string (HH:MM:SS).
The returned values are in the system's local time when utc is false, otherwise they are in UTC.
String get_time_string_from_unix_time ( int unix_time_val ) const
Converts the given Unix timestamp to an ISO 8601 time string (HH:MM:SS).
Dictionary get_time_zone_from_system ( ) const
Returns the current time zone as a dictionary of keys: bias and name. The bias value is the offset from UTC in minutes, since not all time zones are multiples of an hour from UTC.
int get_unix_time_from_datetime_dict ( Dictionary datetime ) const
Converts a dictionary of time values to a Unix timestamp.
The given dictionary can be populated with the following keys: year, month, day, hour, minute, and second. Any other entries (including dst) are ignored.
If the dictionary is empty, 0 is returned. If some keys are omitted, they default to the equivalent values for the Unix epoch timestamp 0 (1970-01-01 at 00:00:00).
You can pass the output from get_datetime_dict_from_unix_time directly into this function and get the same as what was put in.
Note: Unix timestamps are often in UTC. This method does not do any timezone conversion, so the timestamp will be in the same timezone as the given datetime dictionary.
int get_unix_time_from_datetime_string ( String datetime ) const
Converts the given ISO 8601 date and/or time string to a Unix timestamp. The string can contain a date only, a time only, or both.
Note: Unix timestamps are often in UTC. This method does not do any timezone conversion, so the timestamp will be in the same timezone as the given datetime string.
Note: Any decimal fraction in the time string will be ignored silently.
float get_unix_time_from_system ( ) const
Returns the current Unix timestamp in seconds based on the system time in UTC. This method is implemented by the operating system and always returns the time in UTC.
Note: Unlike other methods that use integer timestamps, this method returns the timestamp as a float for sub-second precision.