Holidays in USA

Holidays in USA插件简介

Holidays in USA插件描述

An academic year typically spans from early fall to early summer, with two  three months of summer vacation marking the end of year. K12 public schools generally observe local, state,  federal holidays, plus additional days off around Thanksgiving, the period from befe Christmas until after New Years Day, a spring break (usually a week in April)  sometimes a winter break (a week in February  March). Two  three days per year are sometimes devoted to professional development f teachers,  students have the day off.

Most colleges  universities divide the school year into two semesters. The fall semester often begins the day after Lab Day in early September  runs until midDecember. The spring semester typically starts in the middle  end of January  runs until May. Winter  summer classes might be offered in January  May–August. Maj federal, state,  local holidays are often observed, including the day after  usually befe Thanksgiving. Spring break is usually a week in March  early April,  in college party culture traditionally involves a warmweather trip.

Unscheduled weatherrelated cancellations  emergency cancellations can also affect school calendars.

When taking summer school  summer camp schedules into account, the Independence Day holiday on July 4 is usually a scheduled holiday observance f which the summer program closes.
                                

Holidays in USA插件离线安装方法

1.首先用户点击谷歌浏览器右上角的自定义及控制按钮，在下拉框中选择设置。

2.在打开的谷歌浏览器的扩展管理器最左侧选择扩展程序或直接输入：chrome://extensions/

3.找到自己已经下载好的Chrome离线安装文件xxx.crx，然后将其从资源管理器中拖动到Chrome的扩展管理界面中，这时候用户会发现在扩展管理器的中央部分中会多出一个”拖动以安装“的插件按钮。

4.下载 Holidays in USAChrome插件v1.0版本到本地。

5.勾选开发者模式，点击加载已解压的扩展程序，将文件夹选择即可安装插件。

注意：最新版本的chrome浏览器直接拖放安装时会出现“程序包无效CRX-HEADER-INVALID”的报错信息，参照这篇文章即可解决