Fix overflow in `calculate_offset` #60

	name: 'sntpc test'

	on:
	push:
	branches:
	- master
	pull_request:
	branches:
	- master

	jobs:
	clippy:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Run clippy with std
	run: cargo clippy --no-default-features --features="std log utils"
	- name: Run clippy with no_std
	run: cargo clippy --no-default-features --features="log"
	- name: Run clippy for tokio feature
	run: cargo clippy --features="tokio"
	clippy_async_no_std:
	runs-on: ubuntu-latest
	container:
	image: rust:latest
	steps:
	- uses: actions/checkout@v3
	- name: Install nightly toolchain
	run: rustup toolchain add nightly
	- name: Install clippy
	run: rustup component add clippy --toolchain nightly
	- name: Run clippy for async feature
	run: cargo +nightly clippy --no-default-features --features="async"
	check_format:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Check formatting
	run: cargo fmt --check
	build_test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Build with std
	run: cargo build --all --no-default-features --features="std utils"
	- name: Build with no_std
	run: cargo build --all --no-default-features
	- name: Run tests with std
	run: cargo test
	- name: Run tests with no_std
	run: cargo test --no-default-features

Provide feedback