time (js, cli)

time is clocks and calendar functions. Declare it with edge add time and import it by bare name. The same module runs in the JS host and in the CLI, which runs it in StarlingMonkey, see JavaScript in the CLI.

The surface is time, time_ns, monotonic, monotonic_ns, perf_counter, perf_counter_ns, sleep, gmtime, localtime, mktime, strftime, strptime, asctime, ctime, timezone, altzone, daylight, tzname. sleep suspends the coroutine. gmtime and localtime return the nine fields as a JSON string in struct_time order, decode them with json.loads. tm_wday is Monday=0, tm_yday is 1-based, and tm_isdst is always -1. time_ns returns an int on both hosts. timezone, altzone, daylight, and tzname are calls, not constants, and tzname returns the IANA zone name.

gmtime takes epoch seconds and returns UTC fields, which read the same on every host:

import json
import time

fields = json.loads(time.gmtime(0))
print(fields)
print(time.strftime("%Y-%m-%d %H:%M:%S", time.gmtime(0)))

cmd + enter

[1970, 1, 1, 0, 0, 0, 3, 1, -1]
1970-01-01 00:00:00

Output

The CLI’s runtime is always UTC and has no Intl, so localtime equals gmtime there and tzname() raises module 'time' needs 'Intl', missing in this runtime. CPU and POSIX clocks are out of scope on both hosts.