红宝石 |格林威治标准时间？函数

Time#gmt?()是一个 Time 类方法，用于检查时间是否代表 UTC (GMT) 时间。

Syntax: Time.gmt?()

Parameter: Time values

Return: true – if time represents a time in UTC (GMT) otherwise return false

示例 #1：

# Ruby code for Time.gmt?() method
  
# declaring time 
a = Time.new(2019)
  
# declaring time
b = Time.new(2019, 10)
  
# declaring time
c = Time.new(2019, 12, 31)
  
# Time 
puts "Time a : #{a}\n\n"
puts "Time b : #{b}\n\n"
puts "Time c : #{c}\n\n\n\n"
  
  
# gmt? form 
puts "Time a gmt? form : #{a.gmt?}\n\n"
puts "Time b gmt? form : #{b.gmt?}\n\n"
puts "Time c gmt? form : #{c.gmt?}\n\n"

输出 ：

Time a : 2019-01-01 00:00:00 +0000

Time b : 2019-10-01 00:00:00 +0000

Time c : 2019-12-31 00:00:00 +0000



Time a gmt? form : false

Time b gmt? form : false

Time c gmt? form : false

示例 #2：

# Ruby code for Time.gmt?() method
  
# declaring time 
a = Time.now
  
# declaring time
b = Time.new(1000, 10, 10)
  
# declaring time
c = Time.new(2020, 12)
  
# Time 
puts "Time a : #{a}\n\n"
puts "Time b : #{b}\n\n"
puts "Time c : #{c}\n\n\n\n"
  
  
# gmt? form 
puts "Time a gmt? form : #{a.gmt?}\n\n"
puts "Time b gmt? form : #{b.gmt?}\n\n"
puts "Time c gmt? form : #{c.gmt?}\n\n"

输出 ：

Time a : 2019-08-28 05:27:26 +0000

Time b : 1000-10-10 00:00:00 +0000

Time c : 2020-12-01 00:00:00 +0000



Time a gmt? form : false

Time b gmt? form : false

Time c gmt? form : false