what is the meaning BIMCO time charter- parties in maritime law and international law

(the and International Maritime Council) publishes a number of standard time charter- parties covering a wide variety of situations. These are listed here:
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• The Baltic and International Maritime Conference Deep Time Charter (Box Layout 1974). Code name Linertime.
• Uniform Time for Service Vessels. Code name Supplytime 89.
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• The Baltic and International Maritime Conference Uniform Time Charter Party for Vessels Carrying Liquified Gas. Code name Gastime.
, issued by INTERTANKO. Code name Intertanktime 80.
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• New York Produce Exchange Form Time Charter, , Inc. Code name NYPE 93.