bobwen-dev/htpdate
0
0
Fork 0
mirror of https://github.com/bobwen-dev/htpdate synced 2025-04-11 23:00:44 +02:00
Code Issues Releases Wiki Activity

Update README.md

Browse Source
This commit is contained in:
Bob Wen 2021-11-04 00:16:48 +08:00
parent 212ba7cea1
commit bfa2920206
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
README.md
View File

@ -6,7 +6,7 @@ A tool to synchronize system time from web servers, for linux, windows and macos
Synchronize time from multiple URLs
```bash
```text
C:\> htpdate -s www.pool.ntp.org www.openssl.org nodejs.org
HEAD https://www.pool.ntp.org
#1: +367325 ms
@ -37,7 +37,7 @@ Done
Query from multiple URLs
```bash
```text
$ coffee index.coffee -c 5 -v www.pool.ntp.org www.openssl.org
HEAD https://www.pool.ntp.org
#1: -419 ms DNS: 95 TCP: 27 TSL: 43 Send: 3 Recv: 38
@ -156,7 +156,7 @@ Date: Wed, 03 Nov 2021 11:46:19 GMT
This `Date: Wed, 03 Nov 2021 11:46:19 GMT` is the moment the website was processing the request, which is between the time we sent the request and the time we received the response. Simply assuming that the period to send request and receive is equal, we can calculate that the difference between local time and website time:
```js
```text
duration = received_at - sent_at
delta = server_time - received_at - duration / 2
```