Function time::formatting::format_float

pub(crate) fn format_float(
    output: &mut impl Write,
    value: f64,
    digits_before_decimal: u8,
    digits_after_decimal: Option<NonZeroU8>,
) -> Result<usize>

Write the floating point number to the output, returning the number of bytes written.

This method accepts the number of digits before and after the decimal. The value will be padded with zeroes to the left if necessary.