Validate is incorrect

[KimThi-madi]

Describe the bug
I'm trying to validate time by using isValid() function

case 1: dayjs("20:22:51"," HH:mm:ss ", true).isValid() ==> This return false
case 2: dayjs("20:22:61"," HH:mm:ss ", true).isValid() ==> This return true

Expected behavior
Case 1 should be returned true
Case 2 should be returned false

Information

• Day.js Version 1.10.4
• OS: ios
• using in nodejs
• Time zone: [e.g. GMT+07:00 ICT (Indochina Time)]

[ivansieder]

@KimThi-madi you have spaces around your your format (second parameter), I've reproduced it here and it works as it should: https://codesandbox.io/s/condescending-kalam-nct3j?file=/src/index.js

[nicewaytodoit]

Even one from example does not work anymore:
dayjs("1970-00-00", "YYYY-MM-DD", true).isValid() gives = true should be false
Version: 1.8.20

[nicewaytodoit]

Version: 1.10.4

dayjs('1970-00-00', 'YYYY-MM-DD').isValid(); // true
dayjs('1970-00-00', 'YYYY-MM-DD', true).isValid(); // true => should be false
dayjs('1970-00-00', 'YYYY-MM-DD', 'es', true).isValid(); // true => should be false

Even following is valid, month 90 with strict parse ?!

dayjs('1970-90-00', 'YYYY-MM-DD', true).isValid()
dayjs('1970-90-00', 'YYYY-MM-DD', 'en', true).isValid()

ok my bad again I forgot that I must do following for parsing to work:

import customParseFormat from "dayjs/plugin/customParseFormat";
dayjs.extend(customParseFormat)

[ivansieder]

exactly @nicewaytodoit, without the customParseFormat, the above examples won't be parsed strict. Please also be aware that your first example with version 1.8.20 doesn't use the latest 1.8.x version (which would be 1.8.36). I was able to reproduce the issue in 1.8.20, but it's fixed in the latest 1.8.x version