The Power of Nines
A few articles and blogs have been talking about this.
I first saw this on Ynet, quoting Rav Metzger - the Ashkenazi Chief Rabbi of Israel:
The chief rabbi noted that, according to Kabbalah, the 13 minutes between the hours of 1:43 pm and 1:56 pm on Thursday have unique qualities. He called upon the public to take advantage of this occasion to read psalms for Gilad's rescue. "With the power of prayer, we can open the heavens and be worthy of our heart's wishes being granted – that Gilad will light the Hannukah candles with his family."
Shirat Devorah quoted the Ynet article.
Bluke noted a Kupat Ha'ir poster about the concept. Josh Waxman notes this and links to the source of this idea - the Berit Menuha, bringing information about its author.
Nava adds that the Hesed LeAvraham and the Ramban have mentioned this idea too.
The idea is that the 9th year of the Yovel, the 9th month, the 9th day, and the 9th hour of the day is the choicest time, and this is a good time to pray when prayers would be most accepted.
The Berit Menuha explains Kabbalistically (I'm not saying I understand it fully) that there are 3 Shabbatot: the lower Shabbat - which corresponds to the number 7, the middle Shabbat - which corresponds to the number 8, and the upper Shabbat - which corresponds to the number 9.
Also, the ninth hour is when Eliyahu Hanavi prayed.
The Berit Menuha adds that if someone is born at this hour, he will undoubtedly merit kingship:
על כן כל איש שנולד בשנה הט׳ ליובל בחודש הט׳ ביום הט׳
בשעה הט׳ ושיתחיל לצמוח הוא כמו צומח של כל אלו הרי זה
עולה למלוכה בלי ספק