Self-activity of schema.org breaks inner nirvana. How to fix openingHour?

Question

HTML

Yandex recommends the following construction when describing the organization's working hours:

<time datetime="Mo 11:00-22:00" itemprop="openingHours">11:00-22:00</time>

However, w3c requires the time in the time tag to be in ISO8601 - "1997-07-16T19:20:30" format, intervals are not allowed.
I don’t want to lose the time of work in the snippet, but I want a 100% valid code.
Is there any way to make microdata better friends with the w3c validator?

Answer 1

<data itemprop="openingHours" value="Mo 11:00-22:00">11:00-22:00</data>

This is how the w3c validator does not swear, and the Yandex validator sees the markup.
PS

<meta itemprop="openingHours" content="Mo-Sa 11:00-14:30">Mon-Sat 11am - 2:30pm
<meta itemprop="openingHours" content="Mo-Th 17:00-21:30">Mon-Thu 5pm - 9:30pm

Answer 2

If Yandex digests the markup that it advises, then this is how it should be done.
There will be no bonuses for a 100% valid w3c code, which means you need to focus on the recommendations of search engines.
In general, don't worry about w3c...