merge revision(s) 291a4098,5be0d42d: [Backport #19296]

	Add missing assertion

	---
	 test/ruby/test_time.rb | 3 +++
	 1 file changed, 3 insertions(+)

	[Bug #19296] Precheck bits of time components

	---
	 test/ruby/test_time.rb | 15 +++++++++++++++
	 time.c                 | 14 ++++++++------
	 2 files changed, 23 insertions(+), 6 deletions(-)