Module timestamp

Timestamp handling utilities

Structs

TimestampCache

Optimized cache-friendly timestamp cache for frequent conversions Used for caching and reusing conversion results for common timestamps

Enums

TimestampFormat

Timestamp format used by different exchanges

Functions

days_since_epoch

Calculate days since Unix epoch (1970-01-01) with leap year handling

exchange_time_to_nanos

Convert exchange timestamp to nanoseconds based on its format This is a performance-critical function used in hot paths

is_leap_year

Check if a year is a leap year

iso8601_to_nanos

Parse ISO8601 String to nanoseconds since epoch using optimized parsing This version is significantly faster than the previous implementation Handles format like “2023-01-01T12:00:00Z” or “2023-01-01T12:00:00.123Z”

ms_to_nanos

Optimized version that converts timestamp to nanoseconds without checking format Used when format is known at compile time

parse_u64_from_bytes

Parse a fixed-width byte slice to u64, optimized for parsing ISO8601 components

seconds_to_nanos

Optimized version that converts seconds to nanoseconds

time_smartstring_to_seconds

Convert timestamp String like “HH:MM:SS” to seconds since midnight Optimized for minimal allocations and faster parsing

us_to_nanos

Optimized version that converts microseconds to nanoseconds