sunsetter Calculate the sunrise and sunset times for a given range of dates and location

Usage

sunsetter(
  StartDate = Sys.Date(),
  EndDate = Sys.Date(),
  lat = 50.866572,
  lng = 4.350309
)

Arguments

StartDate: Date in %y-%m-%d format indicating startdate of dataframe. Defaults to today
EndDate: Date in %y-%m-%d format indicating enddate of dataframe. Defaults to today
lat: Numeric indicating the latitude. Defaults to Herman Teirlinck building in Brussels
lng: Numeric indicating the longitude. Defaults to Herman Teirlinck building in Brussels

Value

dataframe containing the dates between the startdate and enddate, the corresponding sunrise time and sunset time.

Details

This function uses the sunrise-sunset API to calculate the sunrise and sunset times for a given range of dates and fixed location. The default location is the Herman Teirlinck building in Brussels.

if StartDate and EndDate are not specified, the function will return the sunrise and sunset times for today.

Author

Sander Devisscher

Examples

if (FALSE) { # \dontrun{
# sunrise and sunset times for the first 10 days of 2021 in Brussels
sunsetter(StartDate = "2021-01-01", EndDate = "2021-01-10", lat = 50.866572, lng = 4.350309)

# sunrise and sunset times for today in Brussels
sunsetter()
} # }