type alias CoverPreviewTime A date and time in <CoverPreview>. Properties optional year: number Year, such as 2026. optional month: number Month, 1 to 12. optional day: number Day of the month, 1 to 31. optional hour: number Hour, 0 to 23. optional minute: number Minute, 0 to 59. optional second: number Second, 0 to 59.