std/time: fix absolute-to-unix conversion and improve tests #1289

	name: Tests [Clang] - Ubuntu
	on: [push, pull_request]

	jobs:
	build-and-exec:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: julelang/ci@main

	- name: Test - Standard Library
	run: \|
	julec --compiler clang -o test tests/std
	./test

	- name: Test - Aliasing
	run: \|
	julec --compiler clang -o test tests/aliasing
	./test

	- name: Test - Arrays
	run: \|
	julec --compiler clang -o test tests/arrays
	./test

	- name: Test - Basic Calculator
	run: \|
	julec --compiler clang -o test tests/basic_calculator

	- name: Test - Comptime
	run: \|
	julec --compiler clang -o test tests/comptime
	./test

	- name: Test - Concurrency
	run: \|
	julec --compiler clang -o test tests/concurrency
	./test

	- name: Test - Exceptionals
	run: \|
	julec --compiler clang -o test tests/exceptionals
	./test

	- name: Test - Generics
	run: \|
	julec --compiler clang -o test tests/generics
	./test

	- name: Test - Levenshtein Distance
	run: \|
	julec --compiler clang -o test tests/levenshtein_distance
	./test

	- name: Test - Maps
	run: \|
	julec --compiler clang -o test tests/maps
	./test

	- name: Test - QuickSort
	run: \|
	julec --compiler clang -o test tests/quicksort
	./test

	- name: Test - Sleep
	run: \|
	julec --compiler clang -o test tests/sleep
	./test

	- name: Test - Syntax
	run: \|
	julec --compiler clang -o test tests/syntax
	./test

	- name: Test - Traits
	run: \|
	julec --compiler clang -o test tests/traits
	./test

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