1. I have this tracking from the China Post EMS site:

2017-01-16 00: 00: 00.0 13:47:00 Guangzhou City to leave the processing center, sent to CAYVRB = VANCOUVER-B Canada Post

2. So maybe that was a flight available for your parcel to get out of China faster and it will be transfer to a flight for Vancouver or it could be the same flight making it to Vancouver.

3. This tracking is indicating the same thing except for Vancouver:
Number: LM228926951CN
Package Status: In Transit

Destination Country: Canada
2017-01-16 13:47 CNCAND,China, International item has left originating country and is en route to Canada
2017-01-15 00:10 510515,China, International item mailed in originating country

Origin Country: China
2017-01-16 22:09 Guangzhou, left Guangzhou to New York's JFK Airport (transfer)
2017-01-15 00:10 Guangdong postal courier logistics international sales office Guangzhou City Range Rover station cast was a pickup (embrace cast member name: Mo steamer, Tel:)
======================================
Powered by http://www.track-chinapost.com

4. Should you be worry , not now but just keep tracking your parcel for any unusual information.

Thanks.

Just to let you know it has arrived in Canada Should get it in about 4 days or so.