July 1st (the 182nd Day of the Year) marks Second Second Half of the Year Day – a chance to step back, evaluate your year so far with your goals and objectives (never mind the new year's resolutions which likely didn't last until February…) and to take action to get back on track if nescessary.
In a leap year in those countries, the midpoint occurs at 1:00 a.m. on July 2, or 11:00pm on July 1 in the southern hemisphere. This is due to summer time having advanced the time by one hour. It falls on the same day of the week as New Year's Day in common years.
July 1 is the 182nd day of the year (183rd in leap years) in the Gregorian calendar. There are 183 days remaining until the end of the year. It is not only the first day of the second half of the year, but also the first day of the third quarter of the year. The end of this day marks the halfway point of a leap year.