时间间隔
- d3.time.interval - a time interval in local time.
- interval - alias for interval.floor.
- interval.range - returns dates within the specified range.
- interval.floor - rounds down to the nearest interval.
- interval.round - rounds up or down to the nearest interval.
- interval.ceil - rounds up to the nearest interval.
- interval.offset - returns a date offset by some interval.
- interval.utc - returns the UTC-equivalent time interval.
- d3.time.day - every day (12:00 AM).
- d3.time.days - alias for day.range.
- d3.time.dayOfYear - computes the day number.
- d3.time.hour - every hour (e.g., 1:00 AM).
- d3.time.hours - alias for hour.range.
- d3.time.minute - every minute (e.g., 1:02 AM).
- d3.time.minutes - alias for minute.range.
- d3.time.month - every month (e.g., February 1, 12:00 AM).
- d3.time.months - alias for month.range.
- d3.time.second - every second (e.g., 1:02:03 AM).
- d3.time.seconds - alias for second.range.
- d3.time.sunday - every Sunday (e.g., February 5, 12:00 AM).
- d3.time.sundays - alias for sunday.range.
- d3.time.sundayOfYear - computes the sunday-based week number.
- d3.time.monday - every Monday (e.g., February 5, 12:00 AM).
- d3.time.mondays - alias for monday.range.
- d3.time.mondayOfYear - computes the monday-based week number.
- d3.time.tuesday - every Tuesday (e.g., February 5, 12:00 AM).
- d3.time.tuesdays - alias for tuesday.range.
- d3.time.tuesdayOfYear - computes the tuesday-based week number.
- d3.time.wednesday - every Wednesday (e.g., February 5, 12:00 AM).
- d3.time.wednesdays - alias for wednesday.range.
- d3.time.wednesdayOfYear - computes the wednesday-based week number.
- d3.time.thursday - every Thursday (e.g., February 5, 12:00 AM).
- d3.time.thursdays - alias for thursday.range.
- d3.time.thursdayOfYear - computes the thursday-based week number.
- d3.time.friday - every Friday (e.g., February 5, 12:00 AM).
- d3.time.fridays - alias for friday.range.
- d3.time.fridayOfYear - computes the friday-based week number.
- d3.time.saturday - every Saturday (e.g., February 5, 12:00 AM).
- d3.time.saturdays - alias for saturday.range.
- d3.time.saturdayOfYear - computes the saturday-based week number.
- d3.time.week - alias for sunday.
- d3.time.weeks - alias for sunday.range.
- d3.time.weekOfYear - alias for sundayOfYear.
- d3.time.year - every year (e.g., January 1, 12:00 AM).
- d3.time.years - alias for year.range.