Function jsDay

host/time/src/main/fmt.js:11–11

(cpy)

// CPython tm_wday is Mon=0..Sun=6; JS getDay is Sun=0. Convert both ways.
const cpyWday = (d) => (d + 6) % 7;
const jsDay = (cpy) => (cpy + 1) % 7;

// Date -> struct_time JSON, CPython order (Y, m, d, H, M, S, wday, yday, isdst).
const toTuple = (dt, utc) => {