what does 1:00 symbol mean?

Recently there was a "get ready" video made warning of high water in sector NY, what ever that means by FEMA. At the end of the video they showed 5 symbols. 2 of them I did not understand. One was of a clock set at 1:00 (does not say A.M or P.M.). Does anyone know what that means. The second symbol or icon was of the yin yang symbol, Which I also do not know how that applies at ready.gov either. the 3rd symbol was a double wavy line which everyone says represents a tidal wave. 4th symbol was of the planet earth globe, US/South America shown on that side of the globe, and 5th symbol was of an electric cord or plug end which represents power outages. So if anyone knows how the yin yang symbol applies to a coming disaster we should get ready for or what a clock set at 1:00 means, please let me know. One guy says the clock means december 21st of this year which is the winter soltice. How can a clock set a 1:00 equal the winter soltice? but thats his explanation, and the yin yang, orginally a chinese symbol, representing the fight between good and evil and balance between the two tho many think it means harmony, actually its the fight for harmony between the dark and light forces. but not sure how that applies on a get ready video. thanks for your help